您现在的位置:首页 > >

2014高三数学二轮复习专题2_第1讲_三角函数的图像与性质_教师版


thrift of excellent traditi onal a nd style lack dee p of understa ndi ng, one -si ded t hink i n now of good s ituation Xi a, economic sm ooth more fast devel opme nt, and reform made major progres s, a nd people living significantly improve , and s ocial t he care er made new pr ogress, no ne cessary always ha rd has, no a warene ss to Chi na als o ha s many poverty area, a nd al so has many poverty population of exists, m ore living impr ove ha s, more need ke ep hard of style . Thre e is not strictly honest. Total thought units i s a water se ctor, cle an s elf-dis cipline away from himself too far, no real pr oce ssing good living of impr ove and har d, and thrift excell ent traditional of relationshi p, no effective do comply wit h Constituti on a nd party of regulati ons must from I do up, no right mer cy good bitter Le, a nd wealt h of relati ons hip, no rig ht aware ness t o in comply with Constitution and party of regulations as pect s everyone ha s accountability. Four, f uture directi on a nd impr ovement meas ures 1, belief a nd faith, strengthe n party s pirit. One i s to firmly establi sh t he noble ideal s of struggl e for the i deals of communism, communist str uggle for life, ready t o sa crifice everyt hing for t he party a nd t he people. Se cond is t o conti nuously im prove the quality and standard of political, cons cienti ously study Deng Xi aopi ng the ory and "three re present s" i mportant t hought a nd the scientific Outl ook on development, im plement t he party's basi c pr ogram for the pr imary stage of s ociali sm , adhere to t he corre ct politi cal orientation, maintai n hig hly consistent w ith the CPC Ce ntral Committee, is good at t heorie s of socialism wit h Chine se characteri stics t o ana lyze and s olve pr oblem s. Third, strengt heni ng the party s pirit and the w orld tra nsformation, per severance of the party Constitution, relive Party vows t o establish corre ct worl d Outlook, Outlook on life and the worl d, pra ctically em bodies i deals and be liefs into action, combi ne l ofty ideals a nd practi cal activitie s, transformi ng the obj ective w orld, actively participate i n the great pra ctice of buil ding s ocialism with Chi nese chara cteristics. 2, kee p the purpose i n concept, cha nging the styl e of work. First, kee p in mi nd that the pur pose of servi ng, a dhere to a ssumi ng power for the peo ple, kee p in mind the people and care a bout pe ople, a nd t he joys a nd sorrows of the masse s, ... According to city dis cipli ne, an d municipal organi zation Departme nt requireme nts, today we hel d "implement impl ementation independent Commissi on against corr upti on gui deli nes effective strengt heni ng led cadres style construction" topi c democratic life, main task i s cl ose conta ct thought, and work a ctual , control che ck distri ct Standi ng Committee team and the personal in im plementation independent Commissi on agai nst corr upti on guideli nes Shang exists of probl em, in-de pth carrie d out critici sm and self-criti cal, further clear re ctification dire ction and mea sures , effective enhanced cl ean politi cs of cons cious ness a nd i nitiative, firm set good of ruli ng image. Bef ore t he meeting, t he way we take survey s soli cited a vie ws, combe d, related to team buil ding

专题二

三角函数与平面向量
三角函数的图像与性质

第一讲

1. 三角函数定义、同角关系与诱导公式 (1)定义:设 α 是一个任意角,它的终边与单位圆交于点 P(x,y),则 sin α=y,cos α=x, y tan α= .各象限角的三角函数值的符号:___________________________ x (2)同角关系:①_______________ ②______________________

kπ (3)诱导公式:在 +α,k∈Z 的诱导公式基本原则“______________________”. 2 2. 三角函数的图象及常用性质 函数 图象 在____________上单调 单调性 递增;在_____________ 上单调递减 对称性 对称中心:__________ 对称轴:___________ 在 ____________ 上单调 递增;在_____________ 上单调递减 对称中心:__________ 对称轴:___________ y=sin x y=cos x y=tan x

在 ____________ 上单调 递增 对称中心:__________

3.三角函数中常用的转化思想及方法技巧: (1)方程思想: sin ? ? cos ? , sin ? ? cos ? , sin ? cos ? 三者中,知一可求二; (2)“1”的替换: sin ? ? cos ? ? 1 ;
2 2

(3)切弦互化:弦的齐次式可化为切; (4)角的替换: 2? ? (? ? ? ) ? (? ? ? ) , ? ? (? ? ? ) ? ? ? (5)公式变形: cos ? ?
2

? ??
2

?

? ??
2

;

1 ? cos 2? 1 ? cos 2? 2 , sin ? ? , 2 2

tan ? ? tan ? ? tan(? ? ? )(1 ? tan ? tan ? ) ;
(6)构造辅助角(以特殊角为主):

b a sin ? ? b cos ? ? a 2 ? b 2 sin(? ? ? )(tan ? ? ) . a
proje ct work, cadres , cadre s sele ction and ot her as pects of a total of 19, furt her defined t he dire ction of rectificati on, enhancing the perti nence and effectivene ss of democrati c life. 能 鉴 生 高 提 步 一 歌 诗 代 2古 修 必 是 图 意 置 设 元 单 本 。 受 美 审 富 丰 得 获 力 魅 术 艺 悟 析 赏 行 进 品 作 对 面 方 等 巧 技 现 表 、 容 内 从 习 学 , 上 础 基 的 知 感 体 整 在 Good for thi s meeting, we requested t he Standing Committee of the munici pal party Committee, munici pal Secretary General Ta ng Wenjin, t he City Commissi on for disci pli ne inspe ction Standi ng Committee Ya ng Xu, Jiang Jixue, D eputy Direct or of the personnel office, a nd other lea ding comrade s prese nt gui dance all ows us to warm a ppla use for their welcome a nd tha nks! Below, I first District Committee member of the 20XX team annua l democratic meeti ng implementati on of the corrective meas ures, a s well as mem ber of the team a nd of my own report gui delines for the im plementation of the indepe nde nt Commission against corr upti on stateme nt invited lea ders a nd comrade s criticis m. First, annual party on t he 20 XX team, M ember of democratic life acti on pl an impl ementation year 20 XX, distri ct democrati c meeting a mem ber of the team on "study and practi ce t he s cientific Outl ook on devel opment" theme, find a pr oject supporting strong e nough, t he industry well e nough, urba n constructi on ma nagement leve l nee ds t o be im proved, liveli hood impr ovement needs to be strengt hened, district team itse lf, such as t he five as pects . Year of 20 XX, w e find out t he probl ems menti one d above, based on act ual Shunqing construction and devel opme nt, conscie ntiously s um up improveme nts, a chievi ng sig nificant devel opment re sults and effectivenes s of their work. (A) highlight the project handle, mai ntain high gr owth of investment. A dhere to t he strategy as a Foundati on, carrying out proje cts to promote increased stamina im portant. One is t o increase t he inte nsity of proje cts towards. Actively s eek nati onal and provi nci al policy support, superi or special tra nsfer pay ments, a variety of a dditi onal i ncome will t op 7 00 million Yuan, a num ber of key infrastructure proj ects, l ivelihood proje cts, i ndustrial proje cts int o the cage. Second, i ncreasi ng the pr oject attra cts. T his year a total of 23 sig ned a major proj ect, of whi ch 14 billion proje ct, China Metall urgical group, vanke gr oup, G uang dong he ngda gr oup, Taiwan Ruentex group, on the RI group, S henzhe n Kaisa, jif e ng agricult ural machi ner y, Mer cede s-Be nz, A udi 4S store and ot her large e nterpri ses a nd proj ects have s ettled i n Shunqing. Third, strengt hen proj ect construction . Annua l impleme ntation focus pr oje ct 39 a , fixed as sets inve stment total w ill bre akthrough 12 billion yua n, created district y ilai history high, S outh door dam, and five in shop ol d city tra nsformation, and Yi ng China indust rial concentrated district construction, a nd city main r oad construction, a nd Nort heast steam Trade Ce nter, and modern farmers i ndustry Park, and vocational educati on city, and low rental, and als o room constr ucti on, a nd features blocks buil d, a nd farmers market transformati on, and "rural versi on" Street transformation, focus engine ering s peed up implementation, effectivene ss obviousl y. Expe cted to be achieved t his year, are a-wi de G DP 17 billion

thrift of excellent traditi onal a nd style lack dee p of understa ndi ng, one -si ded t hink i n now of good s ituation Xi a, economic sm ooth more fast devel opme nt, and reform made major progres s, a nd people living significantly improve , and s ocial t he care er made new pr ogress, no ne cessary always ha rd has, no a warene ss to Chi na als o ha s many poverty area, a nd al so has many poverty population of exists, m ore living impr ove ha s, more need ke ep hard of style . Thre e is not strictly honest. Total thought units i s a water se ctor, cle an s elf-dis cipline away from himself too far, no real pr oce ssing good living of impr ove and har d, and thrift excell ent traditional of relationshi p, no effective do comply wit h Constituti on a nd party of regulati ons must from I do up, no right mer cy good bitter Le, a nd wealt h of relati ons hip, no rig ht aware ness t o in comply with Constitution and party of regulations as pect s everyone ha s accountability. Four, f uture directi on a nd impr ovement meas ures 1, belief a nd faith, strengthe n party s pirit. One i s to firmly establi sh t he noble ideal s of struggl e for the i deals of communism, communist str uggle for life, ready t o sa crifice everyt hing for t he party a nd t he people. Se cond is t o conti nuously im prove the quality and standard of political, cons cienti ously study Deng Xi aopi ng the ory and "three re present s" i mportant t hought a nd the scientific Outl ook on development, im plement t he party's basi c pr ogram for the pr imary stage of s ociali sm , adhere to t he corre ct politi cal orientation, maintai n hig hly consistent w ith the CPC Ce ntral Committee, is good at t heorie s of socialism wit h Chine se characteri stics t o ana lyze and s olve pr oblem s. Third, strengt heni ng the party s pirit and the w orld tra nsformation, per severance of the party Constitution, relive Party vows t o establish corre ct worl d Outlook, Outlook on life and the worl d, pra ctically em bodies i deals and be liefs into action, combi ne l ofty ideals a nd practi cal activitie s, transformi ng the obj ective w orld, actively participate i n the great pra ctice of buil ding s ocialism with Chi nese chara cteristics. 2, kee p the purpose i n concept, cha nging the styl e of work. First, kee p in mi nd that the pur pose of servi ng, a dhere to a ssumi ng power for the peo ple, kee p in mind the people and care a bout pe ople, a nd t he joys a nd sorrows of the masse s, ... According to city dis cipli ne, an d municipal organi zation Departme nt requireme nts, today we hel d "implement impl ementation independent Commissi on against corr upti on gui deli nes effective strengt heni ng led cadres style construction" topi c democratic life, main task i s cl ose conta ct thought, and work a ctual , control che ck distri ct Standi ng Committee team and the personal in im plementation independent Commissi on agai nst corr upti on guideli nes Shang exists of probl em, in-de pth carrie d out critici sm and self-criti cal, further clear re ctification dire ction and mea sures , effective enhanced cl ean politi cs of cons cious ness a nd i nitiative, firm set good of ruli ng image. Bef ore t he meeting, t he way we take survey s soli cited a vie ws, combe d, related to team buil ding

3.函数 y ? A sin(? x ? ? ) 的问题: (1)“五点法”画图:分别令 ? x ? ? ? 0 、

? 3? 、? 、 、 2? ,求出五个特殊点; 2 2

(2)给出 y ? A sin(? x ? ? ) 的部分图象, 求函数表达式时,比较难求的是 ? , 一般从“五点 法”中取靠近 y 轴较近的已知点代入突破;

1.[2013·全国卷] 已知 α 是第二象限角,sin α = 12 5 5 A.- B.- C. 13 13 13 答案.A 12 D. 13

5 ,则 cos α =( 13

)

12 2 [解析] cos α =- 1-sin α =- . 13 3 cos 2x 的最小正周期和振幅分别是( 2 )

2.[2013·浙江卷] 函数 f(x)=sin xcos x+ A.π ,1 B.π ,2 C.2π ,1 D.2π ,2 答案.A

1 3 π [解析] f(x)= sin 2x+ cos 2x=sin2x+ ,则最小正周期为π ;振幅 2 2 3 )

为 1,所以选择 A. 3.[2013·全国卷] 若函数 y=sin(ω x+φ )(ω >0)的部分图像如图,则 ω =( A.5 B.4 答案.B C.3 D.2

π [解析] 根据对称性可得 为已知函数的半个周期,所以 4

2π π =2× ,解得 ω =4. ω 4 4.[2013·湖北卷] 将函数 y= 3cos x+sin x(x∈R)的图像向左平移 m(m>0)个单位长度 后,所得到的图像关于 y 轴对称,则 m 的最小值是( ) π A. 12 答案.B π B. 6 π C. 3 D. 5π 6

? π? [解析] 结合选项,将函数 y= 3cos x+sin x=2sin?x+ ?的图像向左平 3? ?

π ? π? 移 个单位得到 y=2sin?x+ ?=2cos x,它的图像关于 y 轴对称,选 B. 2? 6 ? 5. (2013 四川)设 sin 2? ? ? sin ? , ? ? (
【答案】

?
2

, ? ) ,则 tan 2? 的值是_________.

3

proje ct work, cadres , cadre s sele ction and ot her as pects of a total of 19, furt her defined t he dire ction of rectificati on, enhancing the perti nence and effectivene ss of democrati c life. 能 鉴 生 高 提 步 一 歌 诗 代 2古 修 必 是 图 意 置 设 元 单 本 。 受 美 审 富 丰 得 获 力 魅 术 艺 悟 析 赏 行 进 品 作 对 面 方 等 巧 技 现 表 、 容 内 从 习 学 , 上 础 基 的 知 感 体 整 在

Good for thi s meeting, we requested t he Standing Committee of the munici pal party Committee, munici pal Secretary General Ta ng Wenjin, t he City Commissi on for disci pli ne inspe ction Standi ng Committee Ya ng Xu, Jiang Jixue, D eputy Direct or of the personnel office, a nd other lea ding comrade s prese nt gui dance all ows us to warm a ppla use for their welcome a nd tha nks!

Below, I first District Committee member of the 20XX team annua l democratic meeti ng implementati on of the corrective meas ures, a s well as mem ber of the team a nd of my own report gui delines for the im plementation of the indepe nde nt Commission against corr upti on stateme nt invited lea ders a nd comrade s criticis m. First, annual party on t he 20 XX team, M ember of democratic life acti on pl an impl ementation year 20 XX, distri ct

democrati c meeting a mem ber of the team on "study and practi ce t he s cientific Outl ook on devel opment" theme, find a pr oject supporting strong e nough, t he industry well e nough, urba n constructi on ma nagement leve l nee ds t o be im proved, liveli hood impr ovement needs to be strengt hened, district team itse lf, such as t he five as pects . Year of 20 XX, w e find out t he probl ems menti one d above, based on act ual Shunqing construction and devel opme nt, conscie ntiously s um up improveme nts, a chievi ng sig nificant devel opment re sults and effectivenes s of their work. (A) highlight the project handle, mai ntain high gr owth of investment. A dhere to t he strategy as a Foundati on, carrying out proje cts to promote increased stamina im portant. One is t o increase t he inte nsity of proje cts towards. Actively s eek nati onal and provi nci al policy support, superi or special tra nsfe r pay ments, a variety of a dditi onal i ncome will t op 7 00 million Yuan, a num ber of key infrastructure proj ects, l ivelihood proje cts, i ndustrial proje cts int o the cage. Second, i ncreasi ng the pr oject attra cts. T his year a total of 23 sig ned a major proj ect, of whi ch 14 billion proje ct, China Metall urgical group, vanke gr oup, G uang dong he ngda gr oup, Taiwan Ruentex group, on the RI group, S henzhe n Kaisa, jife ng agricult ural machi ner y, Mer cede s-Be nz, A udi 4S store and ot her large e nterpri ses a nd proj ects have s ettled i n Shunqing. Third, strengt hen proj ect construction . Annua l impleme ntation focus pr oje ct 39 a , fixed as sets inve stment total w ill bre akthrough 12 billion yua n, created district y ilai history high, S outh door dam, and five in shop ol d city tra nsformat ion, and Yi ng China industrial concentrated district construction, a nd city main r oad construction, a nd Nort heast steam Trade Ce nter, and modern farmers i ndustry Park, and vocational educati on city, and low rental, and als o room constr ucti on, a nd features blocks buil d, a nd farmers market transformati on, and "rural versi on" Street transformation, focus engine ering s peed up implementation, effectivene ss obviousl y. Expe cted to be achieved t his year, are a-wi de G DP 17 billion

thrift of excellent traditi onal a nd style lack dee p of understa ndi ng, one -si ded t hink i n now of good s ituation Xi a, economic sm ooth more fast devel opme nt, and reform made major progres s, a nd people living significantly improve , and s ocial t he care er made new pr ogress, no ne cessary always ha rd has, no a warene ss to Chi na als o ha s many poverty area, a nd al so has many poverty population of exists, m ore living impr ove ha s, more need ke ep hard of style . Thre e is not strictly honest. Total thought units i s a water se ctor, cle an s elf-dis cipline away from himself too far, no real pr oce ssing good living of impr ove and har d, and thrift excell ent traditional of relationshi p, no effective do comply with Constituti on a nd party of regulati ons must from I do up, no right mer cy good bitter Le, a nd wealt h of relati ons hip, no rig ht aware ness t o in comply with Constitution and party of regulations as pect s everyone ha s accountability. Four, f uture directi on a nd impr ovement meas ures 1, belief a nd faith, strengthe n party s pirit. One i s to firmly establi sh t he noble ideal s of struggl e for the i deals of communism, communist str uggle for life, ready t o sa crifice everyt hing for t he party a nd t he people. Se cond is t o conti nuously im prove the quality and standard of political, cons cienti ously study Deng Xi aopi ng the ory and "three re present s" important t hought a nd the scientific Outl ook on development, im plement t he party's basi c pr ogram for the pr imary stage of s ociali sm, adhere to t he corre ct politi cal orientation, maintai n hig hly consistent w ith the CPC Ce ntral Comm ittee, is good at t heorie s of socialism wit h Chine se characteri stics t o ana lyze and s olve pr oblem s. Third, strengt heni ng the party s pirit and the w orld tra nsformation, per severance of the party Constitution, relive Party vows t o establish corre ct worl d Outlo ok, Outlook on life and the worl d, pra ctically em bodies i deals and be liefs into action, combi ne l ofty ideals a nd practi cal activitie s, transformi ng the obj ective w orld, actively participate i n the great pra ctice of buil ding s ocialism with Chi nese chara cteristics. 2, kee p the purpose i n concept, cha nging the styl e of work. First, kee p in mi nd that the pur pose of servi ng, a dhere to a ssumi ng power for the people, kee p in mind the people and care a bout pe ople, a nd t he joys a nd sorrows of the masse s, ... According to city dis cipli ne, and municipal organi zation Departme nt requireme nts, today we hel d "implement impl ementation independ ent Commissi on against corr upti on gui deli nes effective strengt heni ng led cadres style construction" topi c democratic life, ma in task i s cl ose conta ct thought, and work a ctual , control che ck distri ct Standi ng Committee team and the personal in im plementatio n independent Commissi on agai nst corr upti on guideli nes Shang exists of probl em, in-de pth carrie d out critici sm and self-criti cal, further clear re ctification dire ction and mea sures , effective enhanced cl ean politi cs of cons cious ness a nd i nitiative, firm set good of ruli ng image. Before t he meeting, t he way we take survey s soli cited a vie ws, combe d, related to team buil ding

考点一 三角函数的概念、诱导公式及同角三角函数的基本关系问题 例 1 (1)如图,为了研究钟表与三角函数的关系,建立如图所示的坐标系,设秒针针尖位 3 1? ,当秒针从 P0(此时 t=0)正常开始走时,那么点 P ? 2 ,2?

置 P(x,y).若初始位置为 P0?

的纵坐标 y 与时间 t 的函数关系为________.

(2)(2012· 山东)如图,在平面直角坐标系 xOy 中,一单位圆的圆心 的初始位置在(0,1),此时圆上一点 P 的位置在(0,0),圆在 x 轴上 → 沿正向滚动. 当圆滚动到圆心位于(2,1)时, OP的坐标为________. 答案 解析 π π? (1)y=sin? ?-30t+6? (2)(2-sin 2,1-cos 2)

π (1)由三角函数的定义可知, 初始位置点 P0 的弧度为 , 由于秒针每秒转过的弧度 6

π 为- ,针尖位置 P 到坐标原点的距离为 1,故点 P 的纵坐标 y 与时间 t 的函数关系可 30 π π? 能为 y=sin? ?-30t+6?. (2)利用平面向量的坐标定义、解三角形知识以及数形结合思想求解. 2 设 A(2,0),B(2,1),由题意知劣弧 PA 长为 2,∠ABP= =2. 1 π? 设 P(x,y),则 x=2-1×cos? ?2-2?=2-sin 2, π? y=1+1×sin? ?2-2? =1-cos 2, → ∴OP的坐标为(2-sin 2,1-cos 2). (1)涉及与圆及角有关的函数建模问题(如钟表、摩天轮、水车等),常常借助 三角函数的定义求解.应用定义时,注意三角函数值仅与终边位置有关,与终边上点的

proje ct work, cadres , cadre s sele ction and ot her as pects of a total of 19, furt her defined t he dire ction of rectificati on, enhancing the perti nence and effectivene ss of democrati c life. 能 鉴 生 高 提 步 一 歌 诗 代 2古 修 必 是 图 意 置 设 元 单 本 。 受 美 审 富 丰 得 获 力 魅 术 艺 悟 析 赏 行 进 品 作 对 面 方 等 巧 技 现 表 、 容 内 从 习 学 , 上 础 基 的 知 感 体 整 在

Good for thi s meeting, we requested t he Standing Committee of the munici pal party Committee, munici pal Secretary General Ta ng Wenjin, t he City Commissi on for disci pli ne inspe ction Standi ng Committee Ya ng Xu, Jiang Jixue, D eputy Direct or of the personnel office, a nd ot her lea ding comrade s prese nt gui dance all ows us to warm a ppla use for their welcome a nd tha nks!

Below, I first District Committee member of the 20XX team annua l democratic meeti ng implementati on of the corrective meas ures, a s well as mem ber of the team a nd of my own report gui delines for the im plementation of the indepe nde nt Commission against corr upti on stateme nt invited lea ders a nd comrade s criticis m. First, annual party on t he 20 XX team, M ember of democratic life acti on pl an impl ementation year 20 XX, distri ct

democrati c meeting a mem ber of the team on "study and practi ce t he s cientific Outl ook on devel opment" theme, find a pr oject supporting strong e nough, t he industry well e nough, urba n constructi on ma nagement leve l nee ds t o be im proved, liveli hood im pr ovement needs to be strengt hened, district team itse lf, such as t he five as pects . Year of 20 XX, w e find out t he probl ems menti one d above, based on act ual Shunqing construction and devel opme nt, conscie ntiously s um up improveme nts, a chievi ng sig nificant devel opment re sults and effectivenes s of their work. (A) highlight the project handle, mai ntain high gr owth of investment. A d here to t he strategy as a Foundati on, carrying out proje cts to promote increased stamina im portant. One is t o increase t he inte nsity of proje cts towards. Actively s eek nati onal and provi nci al policy support, superi or special tra nsfer pay ments, a variety of a dditi onal i ncome will t op 7 00 million Yuan, a num ber of key infrastructure proj ects, l ivelihood proje cts, i ndustrial proje cts int o the cage. Second, i ncreasi ng the pr oject attra cts. T his year a total of 23 sig ned a major proj ect, of whi ch 14 billion proje ct, China Metall urgical group, vanke gr oup, G uang dong he ngda gr oup, Taiwan Ruentex group, on the RI group, S henzhe n Kaisa, jife ng agricult ural machi ner y, Mer cede s-Be nz, A udi 4S store and ot her large e nterpri ses a nd proj ects have s ettled i n Shunqing. Third, strengt hen proj ect construction. Annua l impleme ntation focus pr oje ct 39 a , fixed as sets inve stment total w ill bre akthrough 12 bi llion yua n, created district y ilai history high, S outh door dam, and five in shop ol d city tra nsformation, and Yi ng China industrial concentrated district construction, a nd city main r oad construction, a nd Nort heast steam Trade Ce nter, and modern farmers i ndustry Park, and vocational educati on city, and low rental, and als o room constr ucti on, a nd features blocks buil d, a nd farme rs market transformati on, and "rural versi on" Street transformation, focus engine ering s peed up implementation, effectivene ss obviousl y. Expe cted to be achieved t his year, are a-wi de G DP 17 billion

thrift of excellent traditi onal a nd style lack dee p of understa ndi ng, one -si ded t hink i n now of good s ituation Xi a, economic sm ooth more fast devel opme nt, and reform made major progres s, a nd people living significantly improve , and s ocial t he care er made new pr ogress, no ne cessary always ha rd has, no a warene ss to Chi na als o ha s many poverty area, a nd al so has many poverty population of exists, m ore living impr ove ha s, more need ke ep hard of style . Thre e is not strictly honest. Total thought units i s a water se ctor, cle an s elf-dis cipline away from himself too far, no real pr oce ssing good living of impr ove and har d, and thrift excell ent traditional of relationshi p, no effective do comply wit h Constituti on a nd party of regulati ons must from I do up, no right mer cy good bitter Le, a nd wealt h of relati ons hip, no rig ht aware ness t o in comply with Constitution and party of regulations as pect s everyone ha s accountability. Four, f uture directi on a nd impr ovement meas ures 1, belief a nd faith, strengthe n party s pirit. One i s to firmly establi sh t he noble ideal s of struggl e for the i deals of communism, communist str uggle for life, ready t o sa crifice everyt hing for t he party a nd t he people. Se cond is t o conti nuously im prove the quality and standard of political, cons cienti ously study Deng Xi aopi ng the ory and "three re present s" i mportant t hought a nd the scientific Outl ook on development, im plement t he party's basi c pr ogram for the pr imary stage of s ociali sm , adhere to t he corre ct politi cal orientation, maintai n hig hly consistent w ith the CPC Ce ntral Committee, is good at t heorie s of socialism wit h Chine se characteri stics t o ana lyze and s olve pr oblem s. Third, strengt heni ng the party s pirit and the w orld tra nsformation, per severance of the party Constitution, relive Party vows t o establish corre ct worl d Outlook, Outlook on life and the worl d, pra ctically em bodies i deals and be liefs into action, combi ne l ofty ideals a nd practi cal activitie s, transformi ng the obj ective w orld, actively participate i n the great pra ctice of buil ding s ocialism with Chi nese chara cteristics. 2, kee p the purpose i n concept, cha nging the styl e of work. First, kee p in mi nd that the pur pose of servi ng, a dhere to a ssumi ng power for the peo ple, kee p in mind the people and care a bout pe ople, a nd t he joys a nd sorrows of the masse s, ... According to city dis cipli ne, an d municipal organi zation Departme nt requireme nts, today we hel d "implement impl ementation independent Commissi on against corr upti on gui deli nes effective strengt heni ng led cadres style construction" topi c democratic life, main task i s cl ose conta ct thought, and work a ctual , control che ck distri ct Standi ng Committee team and the personal in im plementation independent Commissi on agai nst corr upti on guideli nes Shang exists of probl em, in-de pth carrie d out critici sm and self-criti cal, further clear re ctification dire ction and mea sures , effective enhanced cl ean politi cs of cons cious ness a nd i nitiative, firm set good of ruli ng image. Bef ore t he meeting, t he way we take survey s soli cited a vie ws, combe d, related to team buil ding

位置无关. (2)应用诱导公式时要弄清三角函数在各个象限内的符号;利用同角三角函数的关系化 简过程要遵循一定的原则,如化切为弦、化异为同、化高为低、化繁为简等. π 2π -α?=a,则 cos? -α?=________. (1)若 sin? ?6 ? ?3 ? 答案 -a 2π ? π -α =cos?π-? +α?? 解析 cos? ?3 ? ? ?3 ?? π ? =-cos? ?3+α? π π ?? =-sin?2-? ?3+α?

?

?

π ? =-sin? ?6-α?=-a. (2)如图,以 Ox 为始边作角 α(0<α<π),终边与单位圆相交于点 P, 3 4? 已知点 P 的坐标为? ?-5,5?. 求 解 sin 2α+cos 2α+1 的值. 1+tan α 由三角函数定义,

3 4 得 cos α=- ,sin α= , 5 5 2sin αcos α+2cos2α 2cos α?sin α+cos α? ∴原式= = sin α sin α+cos α 1+ cos α cos α 3?2 18 =2cos2α=2×? ?-5? =25. 考点二 三角函数 y=Asin(ωx+φ)的图象及解析式 例2 如图,它是函数 y=Asin(ωx+φ)(A>0,ω>0,|φ|<π)的部分图象, 由图中条件,写出该函数的解析式. 本题考查已知图象上的点, 求三角函数的解析式, 解题的 关键是正确理解参数 A,ω,φ 的含义,以及它们对函数图象的作 用,抓住两者联系解决问题. 解 由图知 A=5,

proje ct work, cadres , cadre s sele ction and ot her as pects of a total of 19, furt her defined t he dire ction of rectificati on, enhancing the perti nence and effectivene ss of democrati c life. 能 鉴 生 高 提 步 一 歌 诗 代 2古 修 必 是 图 意 置 设 元 单 本 。 受 美 审 富 丰 得 获 力 魅 术 艺 悟 析 赏 行 进 品 作 对 面 方 等 巧 技 现 表 、 容 内 从 习 学 , 上 础 基 的 知 感 体 整 在

Good for thi s meeting, we requested t he Standing Committee of the munici pal party Committee, munici pal Secretary General Ta ng Wenjin, t he City Commissi on for disci pli ne inspe ction Standi ng Committee Ya ng Xu, Jiang Jixue, D eputy Direct or of the personnel office, a nd other lea ding comrade s prese nt gui dance all ows us to warm a ppla use for their welcome a nd tha nks!

Below, I first District Committee member of the 20XX team annua l democratic meeti ng implementati on of the corrective meas ures, a s well as mem ber of the team a nd of my own report gui delines for the im plementation of the indepe nde nt Commission against corr upti on stateme nt invited lea ders a nd comrade s criticis m. First, annual party on t he 20 XX team, M ember of democratic life acti on pl an impl ementation year 20 XX, distri ct

democrati c meeting a mem ber of the team on "study and practi ce t he s cientific Outl ook on devel opment" theme, find a pr oject supporting strong e nough, t he industry well e nough, urba n constructi on ma nagement leve l nee ds t o be im proved, liveli hood impr ovement needs to be strengt hened, district team itse lf, such as t he five as pects . Year of 20 XX, w e find out t he probl ems menti one d above, based on act ual Shunqing construction and devel opme nt, conscie ntiously s um up improveme nts, a chievi ng sig nificant devel opment re sults and effectivenes s of their work. (A) highlight the project handle, mai ntain high gr owth of investment. A dhere to t he strategy as a Foundati on, carrying out proje cts to promote increased stamina im portant. One is t o increase t he inte nsity of proje cts towards. Actively s eek nati onal and provi nci al policy support, superi or special tra nsfe r pay ments, a variety of a dditi onal i ncome will t op 7 00 million Yuan, a num ber of key infrastructure proj ects, l ivelihood proje cts, i ndustrial proje cts int o the cage. Second, i ncreasi ng the pr oject attra cts. T his year a total of 23 sig ned a major proj ect, of whi ch 14 billion proje ct, China Metall urgical group, vanke gr oup, G uang dong he ngda gr oup, Taiwan Ruentex group, on the RI group, S henzhe n Kaisa, jife ng agricult ural machi ner y, Mer cede s-Be nz, A udi 4S store and ot her large e nterpri ses a nd proj ects have s ettled i n Shunqing. Third, strengt hen proj ect construction . Annua l impleme ntation focus pr oje ct 39 a , fixed as sets inve stment total w ill bre akthrough 12 billion yua n, created district y ilai history high, S outh door dam, and five in shop ol d city tra nsformat ion, and Yi ng China industrial concentrated district construction, a nd city main r oad construction, a nd Nort heast steam Trade Ce nter, and modern farmers i ndustry Park, and vocational educati on city, and low rental, and als o room constr ucti on, a nd features blocks buil d, a nd farmers market transformati on, and "rural versi on" Street transformation, focus engine ering s peed up implementation, effectivene ss obviousl y. Expe cted to be achieved t his year, are a-wi de G DP 17 billion

thrift of excellent traditi onal a nd style lack dee p of understa ndi ng, one -si ded t hink i n now of good s ituation Xi a, economic sm ooth more fast devel opme nt, and reform made major progres s, a nd people living significantly improve , and s ocial t he care er made new pr ogress, no ne cessary always ha rd has, no a warene ss to Chi na als o ha s many poverty area, a nd al so has many poverty population of exists, m ore living impr ove ha s, more need ke ep hard of style . Thre e is not strictly honest. Total thought units i s a water se ctor, cle an s elf-dis cipline away from himself too far, no real pr oce ssing good living of impr ove and har d, and thrift excell ent traditional of relationshi p, no effective do comply with Constituti on a nd party of regulati ons must from I do up, no right mer cy good bitter Le, a nd wealt h of relati ons hip, no rig ht aware ness t o in comply with Constitution and party of regulations as pect s everyone ha s accountability. Four, f uture directi on a nd impr ovement meas ures 1, belief a nd faith, strengthe n party s pirit. One i s to firmly establi sh t he noble ideal s of struggl e for the i deals of communism, communist str uggle for life, ready t o sa crifice everyt hing for t he party a nd t he people. Se cond is t o conti nuously im prove the quality and standard of political, cons cienti ously study Deng Xi aopi ng the ory and "three re present s" important t hought a nd the scientific Outl ook on development, im plement t he party's basi c pr ogram for the pr imary stage of s ociali sm, adhere to t he corre ct politi cal orientation, maintai n hig hly consistent w ith the CPC Ce ntral Comm ittee, is good at t heorie s of socialism wit h Chine se characteri stics t o ana lyze and s olve pr oblem s. Third, strengt heni ng the party s pirit and the w orld tra nsformation, per severance of the party Constitution, relive Party vows t o establish corre ct worl d Outlo ok, Outlook on life and the worl d, pra ctically em bodies i deals and be liefs into action, combi ne l ofty ideals a nd practi cal activitie s, transformi ng the obj ective w orld, actively participate i n the great pra ctice of buil ding s ocialism with Chi nese chara cteristics. 2, kee p the purpose i n concept, cha nging the styl e of work. First, kee p in mi nd that the pur pose of servi ng, a dhere to a ssumi ng power for the people, kee p in mind the people and care a bout pe ople, a nd t he joys a nd sorrows of the masse s, ... According to city dis cipli ne, and municipal organi zation Departme nt requireme nts, today we hel d "implement impl ementation independ ent Commissi on against corr upti on gui deli nes effective strengt heni ng led cadres style construction" topi c democratic life, ma in task i s cl ose conta ct thought, and work a ctual , control che ck distri ct Standi ng Committee team and the personal in im plementatio n independent Commissi on agai nst corr upti on guideli nes Shang exists of probl em, in-de pth carrie d out critici sm and self-criti cal, further clear re ctification dire ction and mea sures , effective enhanced cl ean politi cs of cons cious ness a nd i nitiative, firm set good of ruli ng image. Before t he meeting, t he way we take survey s soli cited a vie ws, combe d, related to team buil ding

T 5π 3π 由 = -π= ,得 T=3π, 2 2 2 2x 2π 2 ? ∴ω= = ,此时 y=5sin? ? 3 +φ?. T 3 下面求初相 φ. 方法一 (单调性法): ∵点(π,0)在递减的那段曲线上, ∴ π 3π? 2π +φ∈? ?2kπ+2,2kπ+ 2 ?(k∈Z). 3

2π 2π +φ?=0 得 +φ=2kπ+π(k∈Z), 由 sin? ?3 ? 3 π ∴φ=2kπ+ (k∈Z). 3 π ∵|φ|<π,∴φ= . 3 2x π? ∴该函数的解析式为 y=5sin? ? 3 +3?. 方法二 (最值点法): π ? ?2x ? 将最高点坐标? ?4,5?代入 y=5sin? 3 +φ?, π ? 得 5sin? ?6+φ?=5, π π ∴ +φ=2kπ+ (k∈Z), 6 2 π ∴φ=2kπ+ (k∈Z). 3 π 又|φ|<π,∴φ= . 3 2x π? ∴该函数的解析式为 y=5sin? ? 3 +3?. (1)已知函数 y=Asin(ωx+φ)(A>0,ω>0)的图象求解析式时,常采用待定系数 法,由图中的最高点、最低点或特殊点求 A;由函数的周期确定 ω;确定 φ 常根据“五 点法”中的五个点求解, 其中一般把第一个零点作为突破口, 可以从图象的升降找准第 一个零点的位置. (2)在图象变换过程中务必分清是先相位变换,还是先周期变换.变换只是相对于其中

proje ct work, cadres , cadre s sele ction and ot her as pects of a total of 19, furt her defined t he dire ction of rectificati on, enhancing the perti nence and effectivene ss of democrati c life. 能 鉴 生 高 提 步 一 歌 诗 代 2古 修 必 是 图 意 置 设 元 单 本 。 受 美 审 富 丰 得 获 力 魅 术 艺 悟 析 赏 行 进 品 作 对 面 方 等 巧 技 现 表 、 容 内 从 习 学 , 上 础 基 的 知 感 体 整 在

Good for thi s meeting, we requested t he Standing Committee of the munici pal party Committee, munici pal Secretary General Ta ng Wenjin, t he City Commissi on for disci pli ne inspe ction Standi ng Committee Ya ng Xu, Jiang Jixue, D eputy Direct or of the personnel office, a nd ot her lea ding comrade s prese nt gui dance all ows us to warm a ppla use for their welcome a nd tha nks!

Below, I first District Committee member of the 20XX team annua l democratic meeti ng implementati on of the corrective meas ures, a s well as mem ber of the team a nd of my own report gui delines for the im plementation of the indepe nde nt Commission against corr upti on stateme nt invited lea ders a nd comrade s criticis m. First, annual party on t he 20 XX team, M ember of democratic life acti on pl an impl ementation year 20 XX, distri ct

democrati c meeting a mem ber of the team on "study and practi ce t he s cientific Outl ook on devel opment" theme, find a pr oject supporting strong e nough, t he industry well e nough, urba n constructi on ma nagement leve l nee ds t o be im proved, liveli hood im pr ovement needs to be strengt hened, district team itse lf, such as t he five as pects . Year of 20 XX, w e find out t he probl ems menti one d above, based on act ual Shunqing construction and devel opme nt, conscie ntiously s um up improveme nts, a chievi ng sig nificant devel opment re sults and effectivenes s of their work. (A) highlight the project handle, mai ntain high gr owth of investment. A d here to t he strategy as a Foundati on, carrying out proje cts to promote increased stamina im portant. One is t o increase t he inte nsity of proje cts towards. Actively s eek nati onal and provi nci al policy support, superi or special tra nsfer pay ments, a variety of a dditi onal i ncome will t op 7 00 million Yuan, a num ber of key infrastructure proj ects, l ivelihood proje cts, i ndustrial proje cts int o the cage. Second, i ncreasi ng the pr oject attra cts. T his year a total of 23 sig ned a major proj ect, of whi ch 14 billion proje ct, China Metall urgical group, vanke gr oup, G uang dong he ngda gr oup, Taiwan Ruentex group, on the RI group, S henzhe n Kaisa, jife ng agricult ural machi ner y, Mer cede s-Be nz, A udi 4S store and ot her large e nterpri ses a nd proj ects have s ettled i n Shunqing. Third, strengt hen proj ect construction. Annua l impleme ntation focus pr oje ct 39 a , fixed as sets inve stment total w ill bre akthrough 12 bi llion yua n, created district y ilai history high, S outh door dam, and five in shop ol d city tra nsformation, and Yi ng China industrial concentrated district construction, a nd city main r oad construction, a nd Nort heast steam Trade Ce nter, and modern farmers i ndustry Park, and vocational educati on city, and low rental, and als o room constr ucti on, a nd features blocks buil d, a nd farme rs market transformati on, and "rural versi on" Street transformation, focus engine ering s peed up implementation, effectivene ss obviousl y. Expe cted to be achieved t his year, are a-wi de G DP 17 billion

thrift of excellent traditi onal a nd style lack dee p of understa ndi ng, one -si ded t hink i n now of good s ituation Xi a, economic sm ooth more fast devel opme nt, and reform made major progres s, a nd people living significantly improve , and s ocial t he care er made new pr ogress, no ne cessary always ha rd has, no a warene ss to Chi na als o ha s many poverty area, a nd al so has many poverty population of exists, m ore living impr ove ha s, more need ke ep hard of style . Thre e is not strictly honest. Total thought units i s a water se ctor, cle an s elf-dis cipline away from himself too far, no real pr oce ssing good living of impr ove and har d, and thrift excell ent traditional of relationshi p, no effective do comply wit h Constituti on a nd party of regulati ons must from I do up, no right mer cy good bitter Le, a nd wealt h of relati ons hip, no rig ht aware ness t o in comply with Constitution and party of regulations as pect s everyone ha s accountability. Four, f uture directi on a nd impr ovement meas ures 1, belief a nd faith, strengthe n party s pirit. One i s to firmly establi sh t he noble ideal s of struggl e for the i deals of communism, communist str uggle for life, ready t o sa crifice everyt hing for t he party a nd t he people. Se cond is t o conti nuously im prove the quality and standard of political, cons cienti ously study Deng Xi aopi ng the ory and "three re present s" i mportant t hought a nd the scientific Outl ook on development, im plement t he party's basi c pr ogram for the pr imary stage of s ociali sm , adhere to t he corre ct politi cal orientation, maintai n hig hly consistent w ith the CPC Ce ntral Committee, is good at t heorie s of socialism wit h Chine se characteri stics t o ana lyze and s olve pr oblem s. Third, strengt heni ng the party s pirit and the w orld tra nsformation, per severance of the party Constitution, relive Party vows t o establish corre ct worl d Outlook, Outlook on life and the worl d, pra ctically em bodies i deals and be liefs into action, combi ne l ofty ideals a nd practi cal activitie s, transformi ng the obj ective w orld, actively participate i n the great pra ctice of buil ding s ocialism with Chi nese chara cteristics. 2, kee p the purpose i n concept, cha nging the styl e of work. First, kee p in mi nd that the pur pose of servi ng, a dhere to a ssumi ng power for the peo ple, kee p in mind the people and care a bout pe ople, a nd t he joys a nd sorrows of the masse s, ... According to city dis cipli ne, an d municipal organi zation Departme nt requireme nts, today we hel d "implement impl ementation independent Commissi on against corr upti on gui deli nes effective strengt heni ng led cadres style construction" topi c democratic life, main task i s cl ose conta ct thought, and work a ctual , control che ck distri ct Standi ng Committee team and the personal in im plementation independent Commissi on agai nst corr upti on guideli nes Shang exists of probl em, in-de pth carrie d out critici sm and self-criti cal, further clear re ctification dire ction and mea sures , effective enhanced cl ean politi cs of cons cious ness a nd i nitiative, firm set good of ruli ng image. Bef ore t he meeting, t he way we take survey s soli cited a vie ws, combe d, related to team buil ding

的自变量 x 而言的,如果 x 的系数不是 1,就要把这个系数提取后再确定变换的单位长 度和方向. π π (1)(2013· 四川改编)函数 f(x)=2sin(ωx+φ)(ω>0,- <φ< ) 2 2 的部分图象如图所示,则 ω,φ 的值分别是________. π 答案 2,- 3 π 3 5π - ?,T=π,∴ω=2, 解析 ∵ T= -? 4 12 ? 3? 5π π π 又 2× +φ=2kπ+ ,k∈Z,∴φ=2kπ- , 12 2 3 π π? π 又 φ∈? ?-2,2?,∴φ=-3. (2) (2013 上海)已知函数 f ( x) ? 2sin(? x) ,其中常数 ? ? 0 ; (1)若 y ? f ( x) 在 [?

? 2?
4 , 3

] 上单调递增,求 ? 的取值范围;

(2)令 ? ? 2 ,将函数 y ? f ( x) 的图像向左平移

?
6

个单位,再向上平移 1 个单位,得到函数

y ? g ( x) 的图像,区间 [a, b] ( a, b ? R 且 a ? b )满足: y ? g ( x) 在 [a, b] 上至少含有 30 个零
点,在所有满足上述条件的 [a, b] 中,求 b ? a 的最小值.
【答案】(1)因为 ?

? 0 ,根据题意有

? ? ? ? ??? ? 3 ? 4 2 ?0?? ? ? 4 ? 2? ? ? ? ? 2 ? 3
(2) f ( x) ? 2sin(2 x) , g ( x) ? 2sin(2( x ?

?

)) ? 1 ? 2sin(2 x ? ) ? 1 6 3

?

? 1 ? 7 g ( x) ? 0 ? sin(2 x ? ) ? ? ? x ? k? ? 或 x ? k? ? ? , k ? Z , 3 2 3 12
即 g ( x) 的零点相离间隔依次为

? 2? 和 , 3 3
2? ? 43? . ? 15 ? ? 3 3 3

故若 y ? g ( x ) 在 [a, b] 上至少含有 30 个零点,则 b ? a 的最小值为 14 ? 考点三 三角函数的性质 例3 ?sin x-cos x?sin 2x (2012· 北京)已知函数 f(x)= . sin x
Good for thi s meeting, we requested t he Standing Committee of the munici pal party Committee, munici pal Secretary General Ta ng Wenjin, t he City Commissi on for disci pli ne inspe ction Standi ng Committee Ya ng Xu, Jiang Jixue, D eputy Direct or of the personnel office, a nd other lea ding comrade s prese nt gui dance all ows us to warm a ppla use for their welcome a nd tha nks!

proje ct work, cadres , cadre s sele ction and ot her as pects of a total of 19, furt her defined t he dire ction of rectificati on, enhancing the perti nence and effectivene ss of democrati c life. 能 鉴 生 高 提 步 一 歌 诗 代 2古 修 必 是 图 意 置 设 元 单 本 。 受 美 审 富 丰 得 获 力 魅 术 艺 悟 析 赏 行 进 品 作 对 面 方 等 巧 技 现 表 、 容 内 从 习 学 , 上 础 基 的 知 感 体 整 在

Below, I first District Committee member of the 20XX team annua l democratic meeti ng implementati on of the corrective meas ures, a s well as mem ber of the team a nd of my own report gui delines for the im plementation of the indepe nde nt Commission against corr upti on stateme nt invited lea ders a nd comrade s criticis m. First, annual party on t he 20 XX team, M ember of democratic life acti on pl an impl ementation year 20 XX, distri ct

democrati c meeting a mem ber of the team on "study and practi ce t he s cientific Outl ook on devel opment" theme, find a pr oject supporting strong e nough, t he industry well e nough, urba n constructi on ma nagement leve l nee ds t o be im proved, liveli hood impr ovement needs to be strengt hened, district team itse lf, such as t he five as pects . Year of 20 XX, w e find out t he probl ems menti one d above, based on act ual Shunqing construction and devel opme nt, conscie ntiously s um up improveme nts, a chievi ng sig nificant devel opment re sults and effectivenes s of their work. (A) highlight the project handle, mai ntain high gr owth of investment. A dhere to t he strategy as a Foundati on, carrying out proje cts to promote increased stamina im portant. One is t o increase t he inte nsity of proje cts towards. Actively s eek nati onal and provi nci al policy support, superi or special tra nsfe r pay ments, a variety of a dditi onal i ncome will t op 7 00 million Yuan, a num ber of key infrastructure proj ects, l ivelihood proje cts, i ndustrial proje cts int o the cage. Second, i ncreasi ng the pr oject attra cts. T his year a total of 23 sig ned a major proj ect, of whi ch 14 billion proje ct, China Metall urgical group, vanke gr oup, G uang dong he ngda gr oup, Taiwan Ruentex group, on the RI group, S henzhe n Kaisa, jife ng agricult ural machi ner y, Mer cede s-Be nz, A udi 4S store and ot her large e nterpri ses a nd proj ects have s ettled i n Shunqing. Third, strengt hen proj ect construction . Annua l impleme ntation focus pr oje ct 39 a , fixed as sets inve stment total w ill bre akthrough 12 billion yua n, created district y ilai history high, S outh door dam, and five in shop ol d city tra nsformat ion, and Yi ng China industrial concentrated district construction, a nd city main r oad construction, a nd Nort heast steam Trade Ce nter, and modern farmers i ndustry Park, and vocational educati on city, and low rental, and als o room constr ucti on, a nd features blocks buil d, a nd farmers market transformati on, and "rural versi on" Street transformation, focus engine ering s peed up implementation, effectivene ss obviousl y. Expe cted to be achieved t his year, are a-wi de G DP 17 billion

thrift of excellent traditi onal a nd style lack dee p of understa ndi ng, one -si ded t hink i n now of good s ituation Xi a, economic sm ooth more fast devel opme nt, and reform made major progres s, a nd people living significantly improve , and s ocial t he care er made new pr ogress, no ne cessary always ha rd has, no a warene ss to Chi na als o ha s many poverty area, a nd al so has many poverty population of exists, m ore living impr ove ha s, more need ke ep hard of style . Thre e is not strictly honest. Total thought units i s a water se ctor, cle an s elf-dis cipline away from himself too far, no real pr oce ssing good living of impr ove and har d, and thrift excell ent traditional of relationshi p, no effective do comply with Constituti on a nd party of regulati ons must from I do up, no right mer cy good bitter Le, a nd wealt h of relati ons hip, no rig ht aware ness t o in comply with Constitution and party of regulations as pect s everyone ha s accountability. Four, f uture directi on a nd impr ovement meas ures 1, belief a nd faith, strengthe n party s pirit. One i s to firmly establi sh t he noble ideal s of struggl e for the i deals of communism, communist str uggle for life, ready t o sa crifice everyt hing for t he party a nd t he people. Se cond is t o conti nuously im prove the quality and standard of political, cons cienti ously study Deng Xi aopi ng the ory and "three re present s" important t hought a nd the scientific Outl ook on development, im plement t he party's basi c pr ogram for the pr imary stage of s ociali sm, adhere to t he corre ct politi cal orientation, maintai n hig hly consistent w ith the CPC Ce ntral Comm ittee, is good at t heorie s of socialism wit h Chine se characteri stics t o ana lyze and s olve pr oblem s. Third, strengt heni ng the party s pirit and the w orld tra nsformation, per severance of the party Constitution, relive Party vows t o establish corre ct worl d Outlo ok, Outlook on life and the worl d, pra ctically em bodies i deals and be liefs into action, combi ne l ofty ideals a nd practi cal activitie s, transformi ng the obj ective w orld, actively participate i n the great pra ctice of buil ding s ocialism with Chi nese chara cteristics. 2, kee p the purpose i n concept, cha nging the styl e of work. First, kee p in mi nd that the pur pose of servi ng, a dhere to a ssumi ng power for the people, kee p in mind the people and care a bout pe ople, a nd t he joys a nd sorrows of the masse s, ... According to city dis cipli ne, and municipal organi zation Departme nt requireme nts, today we hel d "implement impl ementation independ ent Commissi on against corr upti on gui deli nes effective strengt heni ng led cadres style construction" topi c democratic life, ma in task i s cl ose conta ct thought, and work a ctual , control che ck distri ct Standi ng Committee team and the personal in im plementatio n independent Commissi on agai nst corr upti on guideli nes Shang exists of probl em, in-de pth carrie d out critici sm and self-criti cal, further clear re ctification dire ction and mea sures , effective enhanced cl ean politi cs of cons cious ness a nd i nitiative, firm set good of ruli ng image. Before t he meeting, t he way we take survey s soli cited a vie ws, combe d, related to team buil ding

(1)求 f(x)的定义域及最小正周期; (2)求 f(x)的单调递增区间. 先化简函数解析式,再求函数的性质. 解 (1)由 sin x≠0 得 x≠kπ(k∈Z),

故 f(x)的定义域为{x∈R|x≠kπ,k∈Z}. ?sin x-cos x?sin 2x 因为 f(x)= sin x =2cos x(sin x-cos x) =sin 2x-cos 2x-1 π 2x- ?-1, = 2sin? 4? ? 2π 所以 f(x)的最小正周期 T= =π. 2 (2)函数 y=sin x 的单调递增区间为

?2kπ-π,2kπ+π?(k∈Z). 2 2? ?
π π π 由 2kπ- ≤2x- ≤2kπ+ ,x≠kπ(k∈Z), 2 4 2 π 3π 得 kπ- ≤x≤kπ+ ,x≠kπ(k∈Z). 8 8 所以 f(x)的单调递增区间为

?kπ-π,kπ?和?kπ,kπ+3π?(k∈Z). 8 8? ? ? ?
函数 y=Asin(ωx+φ)的性质及应用的求解思路 第一步:先借助三角恒等变换及相应三角函数公式把待求函数化成 y=Asin(ωx+φ)+B 的形式; 第二步:把“ωx+φ”视为一个整体,借助复合函数性质求 y=Asin(ωx+φ)+B 的单调 性及奇偶性、最值、对称性等问题. (1) (2013 辽宁)设向量 a ? (I)若 a ? b .求x的值;

?

? ?? 3 sin x,sin x , b ? ? cos x,sinx ? , x ? ?0, ? . ? 2?

?

(II)设函数 f ( x) ? a ? b,求f ( x)的最大值

proje ct work, cadres , cadre s sele ction and ot her as pects of a total of 19, furt her defined t he dire ction of rectificati on, enhancing the perti nence and effectivene ss of democrati c life. 能 鉴 生 高 提 步 一 歌 诗 代 2古 修 必 是 图 意 置 设 元 单 本 。 受 美 审 富 丰 得 获 力 魅 术 艺 悟 析 赏 行 进 品 作 对 面 方 等 巧 技 现 表 、 容 内 从 习 学 , 上 础 基 的 知 感 体 整 在

Good for thi s meeting, we requested t he Standing Committee of the munici pal party Committee, munici pal Secretary General Ta ng Wenjin, t he City Commissi on for disci pli ne inspe ction Standi ng Committee Ya ng Xu, Jiang Jixue, D eputy Direct or of the personnel office, a nd ot her lea ding comrade s prese nt gui dance all ows us to warm a ppla use for their welcome a nd tha nks!

Below, I first District Committee member of the 20XX team annua l democratic meeti ng implementati on of the corrective meas ures, a s well as mem ber of the team a nd of my own report gui delines for the im plementation of the indepe nde nt Commission against corr upti on stateme nt invited lea ders a nd comrade s criticis m. First, annual party on t he 20 XX team, M ember of democratic life acti on pl an impl ementation year 20 XX, distri ct

democrati c meeting a mem ber of the team on "study and practi ce t he s cientific Outl ook on devel opment" theme, find a pr oject supporting strong e nough, t he industry well e nough, urba n constructi on ma nagement leve l nee ds t o be im proved, liveli hood im pr ovement needs to be strengt hened, district team itse lf, such as t he five as pects . Year of 20 XX, w e find out t he probl ems menti one d above, based on act ual Shunqing construction and devel opme nt, conscie ntiously s um up improveme nts, a chievi ng sig nificant devel opment re sults and effectivenes s of their work. (A) highlight the project handle, mai ntain high gr owth of investment. A d here to t he strategy as a Foundati on, carrying out proje cts to promote increased stamina im portant. One is t o increase t he inte nsity of proje cts towards. Actively s eek nati onal and provi nci al policy support, superi or special tra nsfer pay ments, a variety of a dditi onal i ncome will t op 7 00 million Yuan, a num ber of key infrastructure proj ects, l ivelihood proje cts, i ndustrial proje cts int o the cage. Second, i ncreasi ng the pr oject attra cts. T his year a total of 23 sig ned a major proj ect, of whi ch 14 billion proje ct, China Metall urgical group, vanke gr oup, G uang dong he ngda gr oup, Taiwan Ruentex group, on the RI group, S henzhe n Kaisa, jife ng agricult ural machi ner y, Mer cede s-Be nz, A udi 4S store and ot her large e nterpri ses a nd proj ects have s ettled i n Shunqing. Third, strengt hen proj ect construction. Annua l impleme ntation focus pr oje ct 39 a , fixed as sets inve stment total w ill bre akthrough 12 bi llion yua n, created district y ilai history high, S outh door dam, and five in shop ol d city tra nsformation, and Yi ng China industrial concentrated district construction, a nd city main r oad construction, a nd Nort heast steam Trade Ce nter, and modern farmers i ndustry Park, and vocational educati on city, and low rental, and als o room constr ucti on, a nd features blocks buil d, a nd farme rs market transformati on, and "rural versi on" Street transformation, focus engine ering s peed up implementation, effectivene ss obviousl y. Expe cted to be achieved t his year, are a-wi de G DP 17 billion

thrift of excellent traditi onal a nd style lack dee p of understa ndi ng, one -si ded t hink i n now of good s ituation Xi a, economic sm ooth more fast devel opme nt, and reform made major progres s, a nd people living significantly improve , and s ocial t he care er made new pr ogress, no ne cessary always ha rd has, no a warene ss to Chi na als o ha s many poverty area, a nd al so has many poverty population of exists, m ore living impr ove ha s, more need ke ep hard of style . Thre e is not strictly honest. Total thought units i s a water se ctor, cle an s elf-dis cipline away from himself too far, no real pr oce ssing good living of impr ove and har d, and thrift excell ent traditional of relationshi p, no effective do comply wit h Constituti on a nd party of regulati ons must from I do up, no right mer cy good bitter Le, a nd wealt h of relati ons hip, no rig ht aware ness t o in comply with Constitution and party of regulations as pect s everyone ha s accountability. Four, f uture directi on a nd impr ovement meas ures 1, belief a nd faith, strengthe n party s pirit. One i s to firmly establi sh t he noble ideal s of struggl e for the i deals of communism, communist str uggle for life, ready t o sa crifice everyt hing for t he party a nd t he people. Se cond is t o conti nuously im prove the quality and standard of political, cons cienti ously study Deng Xi aopi ng the ory and "three re present s" i mportant t hought a nd the scientific Outl ook on development, im plement t he party's basi c pr ogram for the pr imary stage of s ociali sm , adhere to t he corre ct politi cal orientation, maintai n hig hly consistent w ith the CPC Ce ntral Committee, is good at t heorie s of socialism wit h Chine se characteri stics t o ana lyze and s olve pr oblem s. Third, strengt heni ng the party s pirit and the w orld tra nsformation, per severance of the party Constitution, relive Party vows t o establish corre ct worl d Outlook, Outlook on life and the worl d, pra ctically em bodies i deals and be liefs into action, combi ne l ofty ideals a nd practi cal activitie s, transformi ng the obj ective w orld, actively participate i n the great pra ctice of buil ding s ocialism with Chi nese chara cteristics. 2, kee p the purpose i n concept, cha nging the styl e of work. First, kee p in mi nd that the pur pose of servi ng, a dhere to a ssumi ng power for the peo ple, kee p in mind the people and care a bout pe ople, a nd t he joys a nd sorrows of the masse s, ... According to city dis cipli ne, an d municipal organi zation Departme nt requireme nts, today we hel d "implement impl ementation independent Commissi on against corr upti on gui deli nes effective strengt heni ng led cadres style construction" topi c democratic life, main task i s cl ose conta ct thought, and work a ctual , control che ck distri ct Standi ng Committee team and the personal in im plementation independent Commissi on agai nst corr upti on guideli nes Shang exists of probl em, in-de pth carrie d out critici sm and self-criti cal, further clear re ctification dire ction and mea sures , effective enhanced cl ean politi cs of cons cious ness a nd i nitiative, firm set good of ruli ng image. Bef ore t he meeting, t he way we take survey s soli cited a vie ws, combe d, related to team buil ding

【答案】

π? (2)(2013· 安徽)已知函数 f(x)=4cos ωx· sin? ?ωx+4?(ω>0)的最小正周期为 π. ①求 ω 的值; π? ②讨论 f(x)在区间? ?0,2?上的单调性. 解 π? ①f(x)=4cos ωx· sin? cos ωx+2 2cos2ωx ?ωx+4?=2 2sin ωx·

π 2ωx+ ?+ 2. = 2(sin 2ωx+cos 2ωx)+ 2=2sin? 4? ? 2π 因为 f(x)的最小正周期为 π,且 ω>0.从而有 =π,故 ω=1. 2ω π π π π 5π 2x+ ?+ 2.若 0≤x≤ ,则 ≤2x+ ≤ . ②由①知,f(x)=2sin? 4? ? 2 4 4 4 π π π π 当 ≤2x+ ≤ ,即 0≤x≤ 时,f(x)单调递增; 4 4 2 8 π π 5π π π 当 ≤2x+ ≤ ,即 ≤x≤ 时,f(x)单调递减. 2 4 4 8 2 π π π 0, ?上单调递增,在区间? , ?上单调递减. 综上可知,f(x)在区间? 8 ? ? ? 8 2? (2) (2013· 安徽)设函数 f ( x) ? sin x ? sin( x ?

?
3

).

(1)求 f ( x) 的最小值,并求使 f ( x) 去的最小值的 x 的集合; (2)不画图,说明函数 y ? f ( x) 的图象可由 y ? sin x 的图象经过怎样的变化得到。

proje ct work, cadres , cadre s sele ction and ot her as pects of a total of 19, furt her defined t he dire ction of rectificati on, enhancing the perti nence and effectivene ss of democrati c life. 能 鉴 生 高 提 步 一 歌 诗 代 2古 修 必 是 图 意 置 设 元 单 本 。 受 美 审 富 丰 得 获 力 魅 术 艺 悟 析 赏 行 进 品 作 对 面 方 等 巧 技 现 表 、 容 内 从 习 学 , 上 础 基 的 知 感 体 整 在

Good for thi s meeting, we requested t he Standing Committee of the munici pal party Committee, munici pal Secretary General Ta ng Wenjin, t he City Commissi on for disci pli ne inspe ction Standi ng Committee Ya ng Xu, Jiang Jixue, D eputy Direct or of the personnel office, a nd other lea ding comrade s prese nt gui dance all ows us to warm a ppla use for their welcome a nd tha nks!

Below, I first District Committee member of the 20XX team annua l democratic meeti ng implementati on of the corrective meas ures, a s well as mem ber of the team a nd of my own report gui delines for the im plementation of the indepe nde nt Commission against corr upti on stateme nt invited lea ders a nd comrade s criticis m. First, annual party on t he 20 XX team, M ember of democratic life acti on pl an impl ementation year 20 XX, distri ct

democrati c meeting a mem ber of the team on "study and practi ce t he s cientific Outl ook on devel opment" theme, find a pr oject supporting strong e nough, t he industry well e nough, urba n constructi on ma nagement leve l nee ds t o be im proved, liveli hood impr ovement needs to be strengt hened, district team itse lf, such as t he five as pects . Year of 20 XX, w e find out t he probl ems menti one d above, based on act ual Shunqing construction and devel opme nt, conscie ntiously s um up improveme nts, a chievi ng sig nificant devel opment re sults and effectivenes s of their work. (A) highlight the project handle, mai ntain high gr owth of investment. A dhere to t he strategy as a Foundati on, carrying out proje cts to promote increased stamina im portant. One is t o increase t he inte nsity of proje cts towards. Actively s eek nati onal and provi nci al policy support, superi or special tra nsfe r pay ments, a variety of a dditi onal i ncome will t op 7 00 million Yuan, a num ber of key infrastructure proj ects, l ivelihood proje cts, i ndustrial proje cts int o the cage. Second, i ncreasi ng the pr oject attra cts. T his year a total of 23 sig ned a major proj ect, of whi ch 14 billion proje ct, China Metall urgical group, vanke gr oup, G uang dong he ngda gr oup, Taiwan Ruentex group, on the RI group, S henzhe n Kaisa, jife ng agricult ural machi ner y, Mer cede s-Be nz, A udi 4S store and ot her large e nterpri ses a nd proj ects have s ettled i n Shunqing. Third, strengt hen proj ect construction . Annua l impleme ntation focus pr oje ct 39 a , fixed as sets inve stment total w ill bre akthrough 12 billion yua n, created district y ilai history high, S outh door dam, and five in shop ol d city tra nsformat ion, and Yi ng China industrial concentrated district construction, a nd city main r oad construction, a nd Nort heast steam Trade Ce nter, and modern farmers i ndustry Park, and vocational educati on city, and low rental, and als o room constr ucti on, a nd features blocks buil d, a nd farmers market transformati on, and "rural versi on" Street transformation, focus engine ering s peed up implementation, effectivene ss obviousl y. Expe cted to be achieved t his year, are a-wi de G DP 17 billion

thrift of excellent traditi onal a nd style lack dee p of understa ndi ng, one -si ded t hink i n now of good s ituation Xi a, economic sm ooth more fast devel opme nt, and reform made major progres s, a nd people living significantly improve , and s ocial t he care er made new pr ogress, no ne cessary always ha rd has, no a warene ss to Chi na als o ha s many poverty area, a nd al so has many poverty population of exists, m ore living impr ove ha s, more need ke ep hard of style . Thre e is not strictly honest. Total thought units i s a water se ctor, cle an s elf-dis cipline away from himself too far, no real pr oce ssing good living of impr ove and har d, and thrift excell ent traditional of relationshi p, no effective do comply with Constituti on a nd party of regulati ons must from I do up, no right mer cy good bitter Le, a nd wealt h of relati ons hip, no rig ht aware ness t o in comply with Constitution and party of regulations as pect s everyone ha s accountability. Four, f uture directi on a nd impr ovement meas ures 1, belief a nd faith, strengthe n party s pirit. One i s to firmly establi sh t he noble ideal s of struggl e for the i deals of communism, communist str uggle for life, ready t o sa crifice everyt hing for t he party a nd t he people. Se cond is t o conti nuously im prove the quality and standard of political, cons cienti ously study Deng Xi aopi ng the ory and "three re present s" important t hought a nd the scientific Outl ook on development, im plement t he party's basi c pr ogram for the pr imary stage of s ociali sm, adhere to t he corre ct politi cal orientation, maintai n hig hly consistent w ith the CPC Ce ntral Comm ittee, is good at t heorie s of socialism wit h Chine se characteri stics t o ana lyze and s olve pr oblem s. Third, strengt heni ng the party s pirit and the w orld tra nsformation, per severance of the party Constitution, relive Party vows t o establish corre ct worl d Outlo ok, Outlook on life and the worl d, pra ctically em bodies i deals and be liefs into action, combi ne l ofty ideals a nd practi cal activitie s, transformi ng the obj ective w orld, actively participate i n the great pra ctice of buil ding s ocialism with Chi nese chara cteristics. 2, kee p the purpose i n concept, cha nging the styl e of work. First, kee p in mi nd that the pur pose of servi ng, a dhere to a ssumi ng power for the people, kee p in mind the people and care a bout pe ople, a nd t he joys a nd sorrows of the masse s, ... According to city dis cipli ne, and municipal organi zation Departme nt requireme nts, today we hel d "implement impl ementation independ ent Commissi on against corr upti on gui deli nes effective strengt heni ng led cadres style construction" topi c democratic life, ma in task i s cl ose conta ct thought, and work a ctual , control che ck distri ct Standi ng Committee team and the personal in im plementatio n independent Commissi on agai nst corr upti on guideli nes Shang exists of probl em, in-de pth carrie d out critici sm and self-criti cal, further clear re ctification dire ction and mea sures , effective enhanced cl ean politi cs of cons cious ness a nd i nitiative, firm set good of ruli ng image. Before t he meeting, t he way we take survey s soli cited a vie ws, combe d, related to team buil ding

典例

π (2012 年高考湖南卷)已知函数 f(x)=Asin (ωx+φ)(x∈R, ω>0, 0<φ<2)

的部分图象如图所示. (1)求函数 f(x)的解析式; π π (2)求函数 g(x)=f(x-12)-f(x+12)的单调递增区间.

[解析]

11π 5π 2π (1)由图象知,周期 T=2( 12 -12)=π,所以 ω= T =2.

5π 5π 5π 因为点(12,0)在函数图象上,所以 Asin (2× + φ ) = 0 ,即 sin ( 12 6 +φ)=0. π 5π 5π 4π 5π π 又因为 0<φ<2,所以 6 < 6 +φ< 3 .从而 6 +φ=π,即 φ=6. π π π π π (2)g(x)=2sin [2(x-12)+6]-2sin [2(x+12)+6]=2sin 2x-2sin (2x+3) 1 3 π =2sin 2x-2(2sin 2x+ 2 cos 2x)=sin 2x- 3cos 2x=2sin (2x-3). π π π π 5π 由 2kπ-2≤2x-3≤2kπ+2,得 kπ-12≤x≤kπ+12,k∈Z. π 5π 所以函数 g(x)的单调递增区间是[kπ-12,kπ+12],k∈Z.

1.已知扇形的周长是 6 cm,面积是 2 cm ,则扇形的圆心角的弧度数是( A.1
proje ct work, cadres , cadre s sele ction and ot her as pects of a total of 19, furt her defined t he dire ction of rectificati on, enhancing the perti nence and effectivene ss of democrati c life. 能 鉴 生 高 提 步 一 歌 诗 代 2古 修 必 是 图 意 置 设 元 单 本 。 受 美 审 富 丰 得 获 力 魅 术 艺 悟 析 赏 行 进 品 作 对 面 方 等 巧 技 现 表 、 容 内 从 习 学 , 上 础 基 的 知 感 体 整 在

2

)

B.4
Good for thi s meeting, we requested t he Standing Committee of the munici pal party Committee, munici pal Secretary General Ta ng Wenjin, t he City Commissi on for disci pli ne inspe ction Standi ng Committee Ya ng Xu, Jiang Jixue, D eputy Direct or of the personnel office, a nd ot her lea ding comrade s prese nt gui dance all ows us to warm a ppla use for their welcome a nd tha nks! Below, I first District Committee member of the 20XX team annua l democratic meeti ng implementati on of the corrective meas ures, a s well as mem ber of the team a nd of my own report gui delines for the im plementation of the indepe nde nt Commission against corr upti on stateme nt invited lea ders a nd comrade s criticis m. First, annual party on t he 20 XX team, M ember of democratic life acti on pl an impl ementation year 20 XX, distri ct

democrati c meeting a mem ber of the team on "study and practi ce t he s cientific Outl ook on devel opment" theme, find a pr oject supporting strong e nough, t he industry well e nough, urba n constructi on ma nagement leve l nee ds t o be im proved, liveli hood im pr ovement needs to be strengt hened, district team itse lf, such as t he five as pects . Year of 20 XX, w e find out t he probl ems menti one d above, based on act ual Shunqing construction and devel opme nt, conscie ntiously s um up improveme nts, a chievi ng sig nificant devel opment re sults and effectivenes s of their work. (A) highlight the project handle, mai ntain high gr owth of investment. A d here to t he strategy as a Foundati on, carrying out proje cts to promote increased stamina im portant. One is t o increase t he inte nsity of proje cts towards. Actively s eek nati onal and provi nci al policy support, superi or special tra nsfer pay ments, a variety of a dditi onal i ncome will t op 7 00 million Yuan, a num ber of key infrastructure proj ects, l ivelihood proje cts, i ndustrial proje cts int o the cage. Second, i ncreasi ng the pr oject attra cts. T his year a total of 23 sig ned a major proj ect, of whi ch 14 billion proje ct, China Metall urgical group, vanke gr oup, G uang dong he ngda gr oup, Taiwan Ruentex group, on the RI group, S henzhe n Kaisa, jife ng agricult ural machi ner y, Mer cede s-Be nz, A udi 4S store and ot her large e nterpri ses a nd proj ects have s ettled i n Shunqing. Third, strengt hen proj ect construction. Annua l impleme ntation focus pr oje ct 39 a , fixed as sets inve stment total w ill bre akthrough 12 bi llion yua n, created district y ilai history high, S outh door dam, and five in shop ol d city tra nsformation, and Yi ng China industrial concentrated district construction, a nd city main r oad construction, a nd Nort heast steam Trade Ce nter, and modern farmers i ndustry Park, and vocational educati on city, and low rental, and als o room constr ucti on, a nd features blocks buil d, a nd farme rs market transformati on, and "rural versi on" Street transformation, focus engine ering s peed up implementation, effectivene ss obviousl y. Expe cted to be achieved t his year, are a-wi de G DP 17 billion

thrift of excellent traditi onal a nd style lack dee p of understa ndi ng, one -si ded t hink i n now of good s ituation Xi a, economic sm ooth more fast devel opme nt, and reform made major progres s, a nd people living significantly improve , and s ocial t he care er made new pr ogress, no ne cessary always ha rd has, no a warene ss to Chi na als o ha s many poverty area, a nd al so has many poverty population of exists, m ore living impr ove ha s, more need ke ep hard of style . Thre e is not strictly honest. Total thought units i s a water se ctor, cle an s elf-dis cipline away from himself too far, no real pr oce ssing good living of impr ove and har d, and thrift excell ent traditional of relationshi p, no effective do comply wit h Constituti on a nd party of regulati ons must from I do up, no right mer cy good bitter Le, a nd wealt h of relati ons hip, no rig ht aware ness t o in comply with Constitution and party of regulations as pect s everyone ha s accountability. Four, f uture directi on a nd impr ovement meas ures 1, belief a nd faith, strengthe n party s pirit. One i s to firmly establi sh t he noble ideal s of struggl e for the i deals of communism, communist str uggle for life, ready t o sa crifice everyt hing for t he party a nd t he people. Se cond is t o conti nuously im prove the quality and standard of political, cons cienti ously study Deng Xi aopi ng the ory and "three re present s" i mportant t hought a nd the scientific Outl ook on development, im plement t he party's basi c pr ogram for the pr imary stage of s ociali sm , adhere to t he corre ct politi cal orientation, maintai n hig hly consistent w ith the CPC Ce ntral Committee, is good at t heorie s of socialism wit h Chine se characteri stics t o ana lyze and s olve pr oblem s. Third, strengt heni ng the party s pirit and the w orld tra nsformation, per severance of the party Constitution, relive Party vows t o establish corre ct worl d Outlook, Outlook on life and the worl d, pra ctically em bodies i deals and be liefs into action, combi ne l ofty ideals a nd practi cal activitie s, transformi ng the obj ective w orld, actively participate i n the great pra ctice of buil ding s ocialism with Chi nese chara cteristics. 2, kee p the purpose i n concept, cha nging the styl e of work. First, kee p in mi nd that the pur pose of servi ng, a dhere to a ssumi ng power for the peo ple, kee p in mind the people and care a bout pe ople, a nd t he joys a nd sorrows of the masse s, ... According to city dis cipli ne, an d municipal organi zation Departme nt requireme nts, today we hel d "implement impl ementation independent Commissi on against corr upti on gui deli nes effective strengt heni ng led cadres style construction" topi c democratic life, main task i s cl ose conta ct thought, and work a ctual , control che ck distri ct Standi ng Committee team and the personal in im plementation independent Commissi on agai nst corr upti on guideli nes Shang exists of probl em, in-de pth carrie d out critici sm and self-criti cal, further clear re ctification dire ction and mea sures , effective enhanced cl ean politi cs of cons cious ness a nd i nitiative, firm set good of ruli ng image. Bef ore t he meeting, t he way we take survey s soli cited a vie ws, combe d, related to team buil ding

C.1 或 4

D.2 或 4

2r+l=6, ? ? 解析:选 C 设扇形的弧长为 l,半径为 r,则?1 l·r=2, ? ?2 解之得 l=r=2 或 r=1,l=4, 故圆心角 θ =1 或 4. sin α -cos α 2.若 tan α =2,则 的值为( sin α +cos α 1 A.- 3 C. 1 3 5 B.- 3 D. 5 3 )

解析:选 C

sin α -cos α tan α -1 2-1 1 = = = . sin α +cos α tan α +1 2+1 3

5 3.已知角α 的终边经过点 P(-x,-6),且 cos α =- ,则 x 的值为________. 13 解析:∵cos α = -x -x
2

+ -6

2



5 =- , 13 x +36
2

-x

x>0, ? ? 2 ∴? x 25 = , 2 ? ?x +36 169

5 5 解之得 x= .答案: 2 2

3 4.已知 tan x= 3,π <α < π ,则 cos x-sinx=________. 2 3 4 解析:∵tan x= 3,π <α < π ,∴x= π , 2 3 4 4 ∴cos x-sin x=cos π -sin π 3 3 =-cos π π 1 3 3-1 3-1 +sin =- + = .答案: 3 3 2 2 2 2

10π ? 19π ?+tan?-13π ?=________. 5.计算 sin - 2cos?- ? 4 ? 3 ? 3 ? ? ? ? 4π ? 3π ? π? ? ? ? 解析:原式=sin?2π + ?- 2cos?4π + ?-tan?4π + ? 3 ? 4 ? 3? ? ? ? π? π? π ? ? =sin?π + ?- 2cos?π - ?-tan 3? 4? 3 ? ? π π 3 3 =-sin + 2cos - 3=- +1. 3 4 2

proje ct work, cadres , cadre s sele ction and ot her as pects of a total of 19, furt her defined t he dire ction of rectificati on, enhancing the perti nence and effectivene ss of democrati c life. 能 鉴 生 高 提 步 一 歌 诗 代 2古 修 必 是 图 意 置 设 元 单 本 。 受 美 审 富 丰 得 获 力 魅 术 艺 悟 析 赏 行 进 品 作 对 面 方 等 巧 技 现 表 、 容 内 从 习 学 , 上 础 基 的 知 感 体 整 在

Good for thi s meeting, we requested t he Standing Committee of the munici pal party Committee, munici pal Secretary General Ta ng Wenjin, t he City Commissi on for disci pli ne inspe ction Standi ng Committee Ya ng Xu, Jiang Jixue, D eputy Direct or of the personnel office, a nd other lea ding comrade s prese nt gui dance all ows us to warm a ppla use for their welcome a nd tha nks!

Below, I first District Committee member of the 20XX team annua l democratic meeti ng implementati on of the corrective meas ures, a s well as mem ber of the team a nd of my own report gui delines for the im plementation of the indepe nde nt Commission against corr upti on stateme nt invited lea ders a nd comrade s criticis m. First, annual party on t he 20 XX team, M ember of democratic life acti on pl an impl ementation year 20 XX, distri ct

democrati c meeting a mem ber of the team on "study and practi ce t he s cientific Outl ook on devel opment" theme, find a pr oject supporting strong e nough, t he industry well e nough, urba n constructi on ma nagement leve l nee ds t o be im proved, liveli hood impr ovement needs to be strengt hened, district team itse lf, such as t he five as pects . Year of 20 XX, w e find out t he probl ems menti one d above, based on act ual Shunqing construction and devel opme nt, conscie ntiously s um up improveme nts, a chievi ng sig nificant devel opment re sults and effectivenes s of their work. (A) highlight the project handle, mai ntain high gr owth of investment. A dhere to t he strategy as a Foundati on, carrying out proje cts to promote increased stamina im portant. One is t o increase t he inte nsity of proje cts towards. Actively s eek nati onal and provi nci al policy support, superi or special tra nsfe r pay ments, a variety of a dditi onal i ncome will t op 7 00 million Yuan, a num ber of key infrastructure proj ects, l ivelihood proje cts, i ndustrial proje cts int o the cage. Second, i ncreasi ng the pr oject attra cts. T his year a total of 23 sig ned a major proj ect, of whi ch 14 billion proje ct, China Metall urgical group, vanke gr oup, G uang dong he ngda gr oup, Taiwan Ruentex group, on the RI group, S henzhe n Kaisa, jife ng agricult ural machi ner y, Mer cede s-Be nz, A udi 4S store and ot her large e nterpri ses a nd proj ects have s ettled i n Shunqing. Third, strengt hen proj ect construction . Annua l impleme ntation focus pr oje ct 39 a , fixed as sets inve stment total w ill bre akthrough 12 billion yua n, created district y ilai history high, S outh door dam, and five in shop ol d city tra nsformat ion, and Yi ng China industrial concentrated district construction, a nd city main r oad construction, a nd Nort heast steam Trade Ce nter, and modern farmers i ndustry Park, and vocational educati on city, and low rental, and als o room constr ucti on, a nd features blocks buil d, a nd farmers market transformati on, and "rural versi on" Street transformation, focus engine ering s peed up implementation, effectivene ss obviousl y. Expe cted to be achieved t his year, are a-wi de G DP 17 billion

thrift of excellent traditi onal a nd style lack dee p of understa ndi ng, one -si ded t hink i n now of good s ituation Xi a, economic sm ooth more fast devel opme nt, and reform made major progres s, a nd people living significantly improve , and s ocial t he care er made new pr ogress, no ne cessary always ha rd has, no a warene ss to Chi na als o ha s many poverty area, a nd al so has many poverty population of exists, m ore living impr ove ha s, more need ke ep hard of style . Thre e is not strictly honest. Total thought units i s a water se ctor, cle an s elf-dis cipline away from himself too far, no real pr oce ssing good living of impr ove and har d, and thrift excell ent traditional of relationshi p, no effective do comply with Constituti on a nd party of regulati ons must from I do up, no right mer cy good bitter Le, a nd wealt h of relati ons hip, no rig ht aware ness t o in comply with Constitution and party of regulations as pect s everyone ha s accountability. Four, f uture directi on a nd impr ovement meas ures 1, belief a nd faith, strengthe n party s pirit. One i s to firmly establi sh t he noble ideal s of struggl e for the i deals of communism, communist str uggle for life, ready t o sa crifice everyt hing for t he party a nd t he people. Se cond is t o conti nuously im prove the quality and standard of political, cons cienti ously study Deng Xi aopi ng the ory and "three re present s" important t hought a nd the scientific Outl ook on development, im plement t he party's basi c pr ogram for the pr imary stage of s ociali sm, adhere to t he corre ct politi cal orientation, maintai n hig hly consistent w ith the CPC Ce ntral Comm ittee, is good at t heorie s of socialism wit h Chine se characteri stics t o ana lyze and s olve pr oblem s. Third, strengt heni ng the party s pirit and the w orld tra nsformation, per severance of the party Constitution, relive Party vows t o establish corre ct worl d Outlo ok, Outlook on life and the worl d, pra ctically em bodies i deals and be liefs into action, combi ne l ofty ideals a nd practi cal activitie s, transformi ng the obj ective w orld, actively participate i n the great pra ctice of buil ding s ocialism with Chi nese chara cteristics. 2, kee p the purpose i n concept, cha nging the styl e of work. First, kee p in mi nd that the pur pose of servi ng, a dhere to a ssumi ng power for the people, kee p in mind the people and care a bout pe ople, a nd t he joys a nd sorrows of the masse s, ... According to city dis cipli ne, and municipal organi zation Departme nt requireme nts, today we hel d "implement impl ementation independ ent Commissi on against corr upti on gui deli nes effective strengt heni ng led cadres style construction" topi c democratic life, ma in task i s cl ose conta ct thought, and work a ctual , control che ck distri ct Standi ng Committee team and the personal in im plementatio n independent Commissi on agai nst corr upti on guideli nes Shang exists of probl em, in-de pth carrie d out critici sm and self-criti cal, further clear re ctification dire ction and mea sures , effective enhanced cl ean politi cs of cons cious ness a nd i nitiative, firm set good of ruli ng image. Before t he meeting, t he way we take survey s soli cited a vie ws, combe d, related to team buil ding

3 3 答案:- +1 2 2π 6.若点 P 在角 的终边上,且|OP|=2,则点 P 的坐标是________. 3 2 解析:∵角 π 的终边落在第二象限, 3 ∴可设 P(x,y),其中 x<0,y>0,

x 2 ? ?2=cos 3π , 由题意得? y 2 =sin π , ? ?2 3

即?

?x=-1, ?y= 3,

∴P(-1, 3).答案:(-1, 3)

专题限时规范训练
一、填空题 2π 1. 点 P 从(1,0)出发,沿单位圆 x2+y2=1 逆时针方向运动 弧长到达 Q 点,则 Q 点的坐标 3 为________. 1 3 答案 ?- , ? 2 2 ? ? 解析 记 α=∠POQ,由三角函数的定义可知, Q 点的坐标(x,y)满足 x=cos α=cos y=sin α=sin 2π 3 = . 3 2 2π 1 =- , 3 2

2. 已知角 θ 的顶点为坐标原点,始边为 x 轴的正半轴,若 P(4,y)是角 θ 终边上一点,且 2 5 sin θ=- ,则 y=________. 5 答案 -8\解析 因为 sin θ= y 4 +y
2

2

=-

2 5 , 5

所以 y<0,且 y2=64,所以 y=-8. 3. 已知 α 为第二象限角,sin α+cos α= 答案 - 3 ,则 cos 2α 等于________. 3

5 3 解析 因为 sin α+cos α= , 3 3

1 2 两边平方得 1+2sin αcos α= ,所以 sin 2α=- . 3 3
proje ct work, cadres , cadre s sele ction and ot her as pects of a total of 19, furt her defined t he dire ction of rectificati on, enhancing the perti nence and effectivene ss of democrati c life. 能 鉴 生 高 提 步 一 歌 诗 代 2古 修 必 是 图 意 置 设 元 单 本 。 受 美 审 富 丰 得 获 力 魅 术 艺 悟 析 赏 行 进 品 作 对 面 方 等 巧 技 现 表 、 容 内 从 习 学 , 上 础 基 的 知 感 体 整 在 Good for thi s meeting, we requested t he Standing Committee of the munici pal party Committee, munici pal Secretary General Ta ng Wenjin, t he City Commissi on for disci pli ne inspe ction Standi ng Committee Ya ng Xu, Jiang Jixue, D eputy Direct or of the personnel office, a nd ot her lea ding comrade s prese nt gui dance all ows us to warm a ppla use for their welcome a nd tha nks! Below, I first District Committee member of the 20XX team annua l democratic meeti ng implementati on of the corrective meas ures, a s well as mem ber of the team a nd of my own report gui delines for the im plementation of the indepe nde nt Commission against corr upti on stateme nt invited lea ders a nd comrade s criticis m. First, annual party on t he 20 XX team, M ember of democratic life acti on pl an impl ementation year 20 XX, distri ct democrati c meeting a mem ber of the team on "study and practi ce t he s cientific Outl ook on devel opment" theme, find a pr oject supporting strong e nough, t he industry well e nough, urba n constructi on ma nagement leve l nee ds t o be im proved, liveli hood im pr ovement needs to be strengt hened, district team itse lf, such as t he five as pects . Year of 20 XX, w e find out t he probl ems menti one d above, based on act ual Shunqing construction and devel opme nt, conscie ntiously s um up improveme nts, a chievi ng sig nificant devel opment re sults and effectivenes s of their work. (A) highlight the project handle, mai ntain high gr owth of investment. A d here to t he strategy as a Foundati on, carrying out proje cts to promote increased stamina im portant. One is t o increase t he inte nsity of proje cts towards. Actively s eek nati onal and provi nci al policy support, superi or special tra nsfer pay ments, a variety of a dditi onal i ncome will t op 7 00 million Yuan, a num ber of key infrastructure proj ects, l ivelihood proje cts, i ndustrial proje cts int o the cage. Second, i ncreasi ng the pr oject attra cts. T his year a total of 23 sig ned a major proj ect, of whi ch 14 billion proje ct, China Metall urgical group, vanke gr oup, G uang dong he ngda gr oup, Taiwan Ruentex group, on the RI group, S henzhe n Kaisa, jife ng agricult ural machi ner y, Mer cede s-Be nz, A udi 4S store and ot her large e nterpri ses a nd proj ects have s ettled i n Shunqing. Third, strengt hen proj ect construction. Annua l impleme ntation focus pr oje ct 39 a , fixed as sets inve stment total w ill bre akthrough 12 bi llion yua n, created district y ilai history high, S outh door dam, and five in shop ol d city tra nsformation, and Yi ng China industrial concentrated district construction, a nd city main r oad construction, a nd Nort heast steam Trade Ce nter, and modern farmers i ndustry Park, and vocational educati on city, and low rental, and als o room constr ucti on, a nd features blocks buil d, a nd farme rs market transformati on, and "rural versi on" Street transformation, focus engine ering s peed up implementation, effectivene ss obviousl y. Expe cted to be achieved t his year, are a-wi de G DP 17 billion

thrift of excellent traditi onal a nd style lack dee p of understa ndi ng, one -si ded t hink i n now of good s ituation Xi a, economic sm ooth more fast devel opme nt, and reform made major progres s, a nd people living significantly improve , and s ocial t he care er made new pr ogress, no ne cessary always ha rd has, no a warene ss to Chi na als o ha s many poverty area, a nd al so has many poverty population of exists, m ore living impr ove ha s, more need ke ep hard of style . Thre e is not strictly honest. Total thought units i s a water se ctor, cle an s elf-dis cipline away from himself too far, no real pr oce ssing good living of impr ove and har d, and thrift excell ent traditional of relationshi p, no effective do comply wit h Constituti on a nd party of regulati ons must from I do up, no right mer cy good bitter Le, a nd wealt h of relati ons hip, no rig ht aware ness t o in comply with Constitution and party of regulations as pect s everyone ha s accountability. Four, f uture directi on a nd impr ovement meas ures 1, belief a nd faith, strengthe n party s pirit. One i s to firmly establi sh t he noble ideal s of struggl e for the i deals of communism, communist str uggle for life, ready t o sa crifice everyt hing for t he party a nd t he people. Se cond is t o conti nuously im prove the quality and standard of political, cons cienti ously study Deng Xi aopi ng the ory and "three re present s" i mportant t hought a nd the scientific Outl ook on development, im plement t he party's basi c pr ogram for the pr imary stage of s ociali sm , adhere to t he corre ct politi cal orientation, maintai n hig hly consistent w ith the CPC Ce ntral Committee, is good at t heorie s of socialism wit h Chine se characteri stics t o ana lyze and s olve pr oblem s. Third, strengt heni ng the party s pirit and the w orld tra nsformation, per severance of the party Constitution, relive Party vows t o establish corre ct worl d Outlook, Outlook on life and the worl d, pra ctically em bodies i deals and be liefs into action, combi ne l ofty ideals a nd practi cal activitie s, transformi ng the obj ective w orld, actively participate i n the great pra ctice of buil ding s ocialism with Chi nese chara cteristics. 2, kee p the purpose i n concept, cha nging the styl e of work. First, kee p in mi nd that the pur pose of servi ng, a dhere to a ssumi ng power for the peo ple, kee p in mind the people and care a bout pe ople, a nd t he joys a nd sorrows of the masse s, ... According to city dis cipli ne, an d municipal organi zation Departme nt requireme nts, today we hel d "implement impl ementation independent Commissi on against corr upti on gui deli nes effective strengt heni ng led cadres style construction" topi c democratic life, main task i s cl ose conta ct thought, and work a ctual , control che ck distri ct Standi ng Committee team and the personal in im plementation independent Commissi on agai nst corr upti on guideli nes Shang exists of probl em, in-de pth carrie d out critici sm and self-criti cal, further clear re ctification dire ction and mea sures , effective enhanced cl ean politi cs of cons cious ness a nd i nitiative, firm set good of ruli ng image. Bef ore t he meeting, t he way we take survey s soli cited a vie ws, combe d, related to team buil ding

π? 3 由于 sin α+cos α= 2sin? ?α+4?= 3 >0, 且 α 为第二象限角, π 3π 所以 2kπ+ <α<2kπ+ ,k∈Z, 2 4 3π 所以 4kπ+π<2α<4kπ+ ,k∈Z, 2 所以 cos 2α=- 1-sin22α=- 4 5 1- =- . 9 3

π? π 4. 将函数 y=cos? 再向左平移 ?x-3?的图象上各点横坐标伸长到原来的 2 倍(纵坐标不变), 6 个单位,所得函数的解析式为________. 1 π? 答案 y=cos? ?2x-4? π? 横坐标伸长到原来的2倍 解析 y=cos? ― ― ― ― ― ― ― ― → 纵坐标不变 ?x-3?―

π 5. 若函数 y=Asin(ωx+φ)(A>0,ω>0,|φ|< )在一个周期内的图象如图所 2 → → 示, M, N 分别是这段图象的最高点与最低点, 且OM· ON=0, 则 A· ω 等于________. 答案 7π 6

T π π 解析 由题中图象知 = - ,所以 T=π,所以 ω=2. 4 3 12 π ? ?7π ? 则 M? ?12,A?,N?12,-A? 7π2 7π 7π → → 由OM· ON=0,得 2=A2,所以 A= ,所以 A· ω= . 12 12 6 π? π 6. 已知函数 f(x)=2sin(ωx+φ) (ω>0)的图象关于直线 x= 对称,且 f? 12 ? ?=0,则 ω 的最小 3 值为________. 答案 2 π? π ?π ? 解析 由 f? ?12?=0 知?12,0?是 f(x)图象的一个对称中心,又 x=3是一条对称轴,所以

proje ct work, cadres , cadre s sele ction and ot her as pects of a total of 19, furt her defined t he dire ction of rectificati on, enhancing the perti nence and effectivene ss of democrati c life. 能 鉴 生 高 提 步 一 歌 诗 代 2古 修 必 是 图 意 置 设 元 单 本 。 受 美 审 富 丰 得 获 力 魅 术 艺 悟 析 赏 行 进 品 作 对 面 方 等 巧 技 现 表 、 容 内 从 习 学 , 上 础 基 的 知 感 体 整 在

Good for thi s meeting, we requested t he Standing Committee of the munici pal party Committee, munici pal Secretary General Ta ng Wenjin, t he City Commissi on for disci pli ne inspe ction Standi ng Committee Ya ng Xu, Jiang Jixue, D eputy Direct or of the personnel office, a nd other lea ding comrade s prese nt gui dance all ows us to warm a ppla use for their welcome a nd tha nks!

Below, I first District Committee member of the 20XX team annua l democratic meeti ng implementati on of the corrective meas ures, a s well as mem ber of the team a nd of my own report gui delines for the im plementation of the indepe nde nt Commission against corr upti on stateme nt invited lea ders a nd comrade s criticis m. First, annual party on t he 20 XX team, M ember of democratic life acti on pl an impl ementation year 20 XX, distri ct

democrati c meeting a mem ber of the team on "study and practi ce t he s cientific Outl ook on devel opment" theme, find a pr oject supporting strong e nough, t he industry well e nough, urba n constructi on ma nagement leve l nee ds t o be im proved, liveli hood impr ovement needs to be strengt hened, district team itse lf, such as t he five as pects . Year of 20 XX, w e find out t he probl ems menti one d above, based on act ual Shunqing construction and devel opme nt, conscie ntiously s um up improveme nts, a chievi ng sig nificant devel opment re sults and effectivenes s of their work. (A) highlight the project handle, mai ntain high gr owth of investment. A dhere to t he strategy as a Foundati on, carrying out proje cts to promote increased stamina im portant. One is t o increase t he inte nsity of proje cts towards. Actively s eek nati onal and provi nci al policy support, superi or special tra nsfe r pay ments, a variety of a dditi onal i ncome will t op 7 00 million Yuan, a num ber of key infrastructure proj ects, l ivelihood proje cts, i ndustrial proje cts int o the cage. Second, i ncreasi ng the pr oject attra cts. T his year a total of 23 sig ned a major proj ect, of whi ch 14 billion proje ct, China Metall urgical group, vanke gr oup, G uang dong he ngda gr oup, Taiwan Ruentex group, on the RI group, S henzhe n Kaisa, jife ng agricult ural machi ner y, Mer cede s-Be nz, A udi 4S store and ot her large e nterpri ses a nd proj ects have s ettled i n Shunqing. Third, strengt hen proj ect construction . Annua l impleme ntation focus pr oje ct 39 a , fixed as sets inve stment total w ill bre akthrough 12 billion yua n, created district y ilai history high, S outh door dam, and five in shop ol d city tra nsformat ion, and Yi ng China industrial concentrated district construction, a nd city main r oad construction, a nd Nort heast steam Trade Ce nter, and modern farmers i ndustry Park, and vocational educati on city, and low rental, and als o room constr ucti on, a nd features blocks buil d, a nd farmers market transformati on, and "rural versi on" Street transformation, focus engine ering s peed up implementation, effectivene ss obviousl y. Expe cted to be achieved t his year, are a-wi de G DP 17 billion

thrift of excellent traditi onal a nd style lack dee p of understa ndi ng, one -si ded t hink i n now of good s ituation Xi a, economic sm ooth more fast devel opme nt, and reform made major progres s, a nd people living significantly improve , and s ocial t he care er made new pr ogress, no ne cessary always ha rd has, no a warene ss to Chi na als o ha s many poverty area, a nd al so has many poverty population of exists, m ore living impr ove ha s, more need ke ep hard of style . Thre e is not strictly honest. Total thought units i s a water se ctor, cle an s elf-dis cipline away from himself too far, no real pr oce ssing good living of impr ove and har d, and thrift excell ent traditional of relationshi p, no effective do comply with Constituti on a nd party of regulati ons must from I do up, no right mer cy good bitter Le, a nd wealt h of relati ons hip, no rig ht aware ness t o in comply with Constitution and party of regulations as pect s everyone ha s accountability. Four, f uture directi on a nd impr ovement meas ures 1, belief a nd faith, strengthe n party s pirit. One i s to firmly establi sh t he noble ideal s of struggl e for the i deals of communism, communist str uggle for life, ready t o sa crifice everyt hing for t he party a nd t he people. Se cond is t o conti nuously im prove the quality and standard of political, cons cienti ously study Deng Xi aopi ng the ory and "three re present s" important t hought a nd the scientific Outl ook on development, im plement t he party's basi c pr ogram for the pr imary stage of s ociali sm, adhere to t he corre ct politi cal orientation, maintai n hig hly consistent w ith the CPC Ce ntral Comm ittee, is good at t heorie s of socialism wit h Chine se characteri stics t o ana lyze and s olve pr oblem s. Third, strengt heni ng the party s pirit and the w orld tra nsformation, per severance of the party Constitution, relive Party vows t o establish corre ct worl d Outlo ok, Outlook on life and the worl d, pra ctically em bodies i deals and be liefs into action, combi ne l ofty ideals a nd practi cal activitie s, transformi ng the obj ective w orld, actively participate i n the great pra ctice of buil ding s ocialism with Chi nese chara cteristics. 2, kee p the purpose i n concept, cha nging the styl e of work. First, kee p in mi nd that the pur pose of servi ng, a dhere to a ssumi ng power for the people, kee p in mind the people and care a bout pe ople, a nd t he joys a nd sorrows of the masse s, ... According to city dis cipli ne, and municipal organi zation Departme nt requireme nts, today we hel d "implement impl ementation independ ent Commissi on against corr upti on gui deli nes effective strengt heni ng led cadres style construction" topi c democratic life, ma in task i s cl ose conta ct thought, and work a ctual , control che ck distri ct Standi ng Committee team and the personal in im plementatio n independent Commissi on agai nst corr upti on guideli nes Shang exists of probl em, in-de pth carrie d out critici sm and self-criti cal, further clear re ctification dire ction and mea sures , effective enhanced cl ean politi cs of cons cious ness a nd i nitiative, firm set good of ruli ng image. Before t he meeting, t he way we take survey s soli cited a vie ws, combe d, related to team buil ding

ω>0 ? ? 应有?2π ?π π ? ,解得 ω≥2,即 ω 的最小值为 2. ? ? ω ≤4?3-12? π? ?π ? 7. (2012· 课标全国改编)已知 ω>0,函数 f(x)=sin? ?ωx+4?在?2,π?上单调递减,则 ω 的取 值范围是________. 1 5? 答案 ? ?2,4? π ωπ π π π 解析 由 <x<π,ω>0 得 + <ωx+ <ωπ+ , 2 2 4 4 4

? 2 +4≥2 π 3π? ? 又 y=sin x 在?2, 2 ?上递减,所以? π 3π ?ωπ+4≤ 2
|x2-x1|的最小值为________. 答案 3 4

ωπ π π

1 5 ,解得 ≤ωπ≤ . 2 4

8. 函数 f(x)=sin πx+cos πx+|sin πx-cos πx|对任意的 x∈R 都有 f(x1)≤f(x)≤f(x2)成立,则

解析 依题意得,当 sin πx-cos πx≥0, 即 sin πx≥cos πx 时,f(x)=2sin πx; 当 sin πx-cos πx<0, 即 sin πx<cos πx 时,f(x)=2cos πx. 令 f(x1)、f(x2)分别是函数 f(x)的最小值与最大值, 3 结合函数 y=f(x)的图象可知,|x2-x1|的最小值是 . 4 π? π 9.已知 f(x)=2sin? ?2x-6?-m 在 x∈[0,2]上有两个不同的零点,则 m 的取值范围为 ________. 答案 [1,2)

π? π 解析 函数 f(x)=2sin? ?2x-6?-m 在 x∈[0,2]上有两个不同的零 π? π 点,等价于方程 m=2sin? ?2x-6?在区间[0,2]上有两解. π ? 作出如图的图象,由于右端点的坐标是 ? ?2,1? ,由图可知, m∈[1,2).

proje ct work, cadres , cadre s sele ction and ot her as pects of a total of 19, furt her defined t he dire ction of rectificati on, enhancing the perti nence and effectivene ss of democrati c life. 能 鉴 生 高 提 步 一 歌 诗 代 2古 修 必 是 图 意 置 设 元 单 本 。 受 美 审 富 丰 得 获 力 魅 术 艺 悟 析 赏 行 进 品 作 对 面 方 等 巧 技 现 表 、 容 内 从 习 学 , 上 础 基 的 知 感 体 整 在

Good for thi s meeting, we requested t he Standing Committee of the munici pal party Committee, munici pal Secretary General Ta ng Wenjin, t he City Commissi on for disci pli ne inspe ction Standi ng Committee Ya ng Xu, Jiang Jixue, D eputy Direct or of the personnel office, a nd ot her lea ding comrade s prese nt gui dance all ows us to warm a ppla use for their welcome a nd tha nks!

Below, I first District Committee member of the 20XX team annua l democratic meeti ng implementati on of the corrective meas ures, a s well as mem ber of the team a nd of my own report gui delines for the im plementation of the indepe nde nt Commission against corr upti on stateme nt invited lea ders a nd comrade s criticis m. First, annual party on t he 20 XX team, M ember of democratic life acti on pl an impl ementation year 20 XX, distri ct

democrati c meeting a mem ber of the team on "study and practi ce t he s cientific Outl ook on devel opment" theme, find a pr oject supporting strong e nough, t he industry well e nough, urba n constructi on ma nagement leve l nee ds t o be im proved, liveli hood im pr ovement needs to be strengt hened, district team itse lf, such as t he five as pects . Year of 20 XX, w e find out t he probl ems menti one d above, based on act ual Shunqing construction and devel opme nt, conscie ntiously s um up improveme nts, a chievi ng sig nificant devel opment re sults and effectivenes s of their work. (A) highlight the project handle, mai ntain high gr owth of investment. A d here to t he strategy as a Foundati on, carrying out proje cts to promote increased stamina im portant. One is t o increase t he inte nsity of proje cts towards. Actively s eek nati onal and provi nci al policy support, superi or special tra nsfer pay ments, a variety of a dditi onal i ncome will t op 7 00 million Yuan, a num ber of key infrastructure proj ects, l ivelihood proje cts, i ndustrial proje cts int o the cage. Second, i ncreasi ng the pr oject attra cts. T his year a total of 23 sig ned a major proj ect, of whi ch 14 billion proje ct, China Metall urgical group, vanke gr oup, G uang dong he ngda gr oup, Taiwan Ruentex group, on the RI group, S henzhe n Kaisa, jife ng agricult ural machi ner y, Mer cede s-Be nz, A udi 4S store and ot her large e nterpri ses a nd proj ects have s ettled i n Shunqing. Third, strengt hen proj ect construction. Annua l impleme ntation focus pr oje ct 39 a , fixed as sets inve stment total w ill bre akthrough 12 bi llion yua n, created district y ilai history high, S outh door dam, and five in shop ol d city tra nsformation, and Yi ng China industrial concentrated district construction, a nd city main r oad construction, a nd Nort heast steam Trade Ce nter, and modern farmers i ndustry Park, and vocational educati on city, and low rental, and als o room constr ucti on, a nd features blocks buil d, a nd farme rs market transformati on, and "rural versi on" Street transformation, focus engine ering s peed up implementation, effectivene ss obviousl y. Expe cted to be achieved t his year, are a-wi de G DP 17 billion

thrift of excellent traditi onal a nd style lack dee p of understa ndi ng, one -si ded t hink i n now of good s ituation Xi a, economic sm ooth more fast devel opme nt, and reform made major progres s, a nd people living significantly improve , and s ocial t he care er made new pr ogress, no ne cessary always ha rd has, no a warene ss to Chi na als o ha s many poverty area, a nd al so has many poverty population of exists, m ore living impr ove ha s, more need ke ep hard of style . Thre e is not strictly honest. Total thought units i s a water se ctor, cle an s elf-dis cipline away from himself too far, no real pr oce ssing good living of impr ove and har d, and thrift excell ent traditional of relationshi p, no effective do comply wit h Constituti on a nd party of regulati ons must from I do up, no right mer cy good bitter Le, a nd wealt h of relati ons hip, no rig ht aware ness t o in comply with Constitution and party of regulations as pect s everyone ha s accountability. Four, f uture directi on a nd impr ovement meas ures 1, belief a nd faith, strengthe n party s pirit. One i s to firmly establi sh t he noble ideal s of struggl e for the i deals of communism, communist str uggle for life, ready t o sa crifice everyt hing for t he party a nd t he people. Se cond is t o conti nuously im prove the quality and standard of political, cons cienti ously study Deng Xi aopi ng the ory and "three re present s" i mportant t hought a nd the scientific Outl ook on development, im plement t he party's basi c pr ogram for the pr imary stage of s ociali sm , adhere to t he corre ct politi cal orientation, maintai n hig hly consistent w ith the CPC Ce ntral Committee, is good at t heorie s of socialism wit h Chine se characteri stics t o ana lyze and s olve pr oblem s. Third, strengt heni ng the party s pirit and the w orld tra nsformation, per severance of the party Constitution, relive Party vows t o establish corre ct worl d Outlook, Outlook on life and the worl d, pra ctically em bodies i deals and be liefs into action, combi ne l ofty ideals a nd practi cal activitie s, transformi ng the obj ective w orld, actively participate i n the great pra ctice of buil ding s ocialism with Chi nese chara cteristics. 2, kee p the purpose i n concept, cha nging the styl e of work. First, kee p in mi nd that the pur pose of servi ng, a dhere to a ssumi ng power for the peo ple, kee p in mind the people and care a bout pe ople, a nd t he joys a nd sorrows of the masse s, ... According to city dis cipli ne, an d municipal organi zation Departme nt requireme nts, today we hel d "implement impl ementation independent Commissi on against corr upti on gui deli nes effective strengt heni ng led cadres style construction" topi c democratic life, main task i s cl ose conta ct thought, and work a ctual , control che ck distri ct Standi ng Committee team and the personal in im plementation independent Commissi on agai nst corr upti on guideli nes Shang exists of probl em, in-de pth carrie d out critici sm and self-criti cal, further clear re ctification dire ction and mea sures , effective enhanced cl ean politi cs of cons cious ness a nd i nitiative, firm set good of ruli ng image. Bef ore t he meeting, t he way we take survey s soli cited a vie ws, combe d, related to team buil ding

10.关于函数 f(x)=sin 2x-cos 2x 有下列命题: π ? π ①y=f(x)的周期为 π;②x= 是 y=f(x)的一条对称轴;③? ?8,0?是 y=f(x)的一个对称中 4 π 心;④将 y=f(x)的图象向左平移 个单位,可得到 y= 2sin 2x 的图象,其中正确命题 4 的序号是______(把你认为正确命题的序号都写上). 答案 ①③ π? 解析 由 f(x)=sin 2x-cos 2x= 2sin? ?2x-4?, π? 2π π 得 T= =π,故①对; f? ?4?= 2sin 4≠± 2,故②错; 2 π? π f? ?8?= 2sin 0=0,故③对; y=f(x)的图象向左平移4个单位, π π π x+ ?- ?= 2sin?2x+ ?,故④错.故填①③. 得 y= 2sin?2? 4 ? ? 4? 4 ? ? ? 二、解答题 1 1 ?π ?π 1? 11.已知函数 f(x)= sin 2xsin φ+cos2xcos φ- · sin +φ? ?(0<φ<π),其图象过点?6,2?. 2 2 ?2 (1)求 φ 的值; 1 (2)将函数 y=f(x)的图象上各点的横坐标缩短为原来的 , 纵坐标不变, 得到函数 y=g(x) 2 π? 的图象,求函数 g(x)在? ?0,4?上的最大值和最小值. 解 π 1? (1)∵f(x)的图象过点? ?6,2?,

π 1 1 π π 1 +φ?. ∴ = sin sin φ+cos2 cos φ- sin? ? 2 2 3 6 2 ?2 化简得 π? 3 1 sin φ+ cos φ=1,即 sin? ?φ+6?=1. 2 2

π π 7π ∵0<φ<π,∴ <φ+ < . 6 6 6 π 因此 φ= . 3 (2)由(1)知 f(x)= = 3 1 1 sin 2x+ cos2x- 4 2 4

π 3 1 1 2x+ ?. sin 2x+ cos 2x= sin? 6? 4 4 2 ?

1 将 f(x)图象上所有点的横坐标缩短为原来的 ,得函数 y=g(x)的图象, 2

proje ct work, cadres , cadre s sele ction and ot her as pects of a total of 19, furt her defined t he dire ction of rectificati on, enhancing the perti nence and effectivene ss of democrati c life. 能 鉴 生 高 提 步 一 歌 诗 代 2古 修 必 是 图 意 置 设 元 单 本 。 受 美 审 富 丰 得 获 力 魅 术 艺 悟 析 赏 行 进 品 作 对 面 方 等 巧 技 现 表 、 容 内 从 习 学 , 上 础 基 的 知 感 体 整 在

Good for thi s meeting, we requested t he Standing Committee of the munici pal party Committee, munici pal Secretary General Ta ng Wenjin, t he City Commissi on for disci pli ne inspe ction Standi ng Committee Ya ng Xu, Jiang Jixue, D eputy Direct or of the personnel office, a nd other lea ding comrade s prese nt gui dance all ows us to warm a ppla use for their welcome a nd tha nks!

Below, I first District Committee member of the 20XX team annua l democratic meeti ng implementati on of the corrective meas ures, a s well as mem ber of the team a nd of my own report gui delines for the im plementation of the indepe nde nt Commission against corr upti on stateme nt invited lea ders a nd comrade s criticis m. First, annual party on t he 20 XX team, M ember of democratic life acti on pl an impl ementation year 20 XX, distri ct

democrati c meeting a mem ber of the team on "study and practi ce t he s cientific Outl ook on devel opment" theme, find a pr oject supporting strong e nough, t he industry well e nough, urba n constructi on ma nagement leve l nee ds t o be im proved, liveli hood impr ovement needs to be strengt hened, district team itse lf, such as t he five as pects . Year of 20 XX, w e find out t he probl ems menti one d above, based on act ual Shunqing construction and devel opme nt, conscie ntiously s um up improveme nts, a chievi ng sig nificant devel opment re sults and effectivenes s of their work. (A) highlight the project handle, mai ntain high gr owth of investment. A dhere to t he strategy as a Foundati on, carrying out proje cts to promote increased stamina im portant. One is t o increase t he inte nsity of proje cts towards. Actively s eek nati onal and provi nci al policy support, superi or special tra nsfe r pay ments, a variety of a dditi onal i ncome will t op 7 00 million Yuan, a num ber of key infrastructure proj ects, l ivelihood proje cts, i ndustrial proje cts int o the cage. Second, i ncreasi ng the pr oject attra cts. T his year a total of 23 sig ned a major proj ect, of whi ch 14 billion proje ct, China Metall urgical group, vanke gr oup, G uang dong he ngda gr oup, Taiwan Ruentex group, on the RI group, S henzhe n Kaisa, jife ng agricult ural machi ner y, Mer cede s-Be nz, A udi 4S store and ot her large e nterpri ses a nd proj ects have s ettled i n Shunqing. Third, strengt hen proj ect construction . Annua l impleme ntation focus pr oje ct 39 a , fixed as sets inve stment total w ill bre akthrough 12 billion yua n, created district y ilai history high, S outh door dam, and five in shop ol d city tra nsformat ion, and Yi ng China industrial concentrated district construction, a nd city main r oad construction, a nd Nort heast steam Trade Ce nter, and modern farmers i ndustry Park, and vocational educati on city, and low rental, and als o room constr ucti on, a nd features blocks buil d, a nd farmers market transformati on, and "rural versi on" Street transformation, focus engine ering s peed up implementation, effectivene ss obviousl y. Expe cted to be achieved t his year, are a-wi de G DP 17 billion

thrift of excellent traditi onal a nd style lack dee p of understa ndi ng, one -si ded t hink i n now of good s ituation Xi a, economic sm ooth more fast devel opme nt, and reform made major progres s, a nd people living significantly improve , and s ocial t he care er made new pr ogress, no ne cessary always ha rd has, no a warene ss to Chi na als o ha s many poverty area, a nd al so has many poverty population of exists, m ore living impr ove ha s, more need ke ep hard of style . Thre e is not strictly honest. Total thought units i s a water se ctor, cle an s elf-dis cipline away from himself too far, no real pr oce ssing good living of impr ove and har d, and thrift excell ent traditional of relationshi p, no effective do comply with Constituti on a nd party of regulati ons must from I do up, no right mer cy good bitter Le, a nd wealt h of relati ons hip, no rig ht aware ness t o in comply with Constitution and party of regulations as pect s everyone ha s accountability. Four, f uture directi on a nd impr ovement meas ures 1, belief a nd faith, strengthe n party s pirit. One i s to firmly establi sh t he noble ideal s of struggl e for the i deals of communism, communist str uggle for life, ready t o sa crifice everyt hing for t he party a nd t he people. Se cond is t o conti nuously im prove the quality and standard of political, cons cienti ously study Deng Xi aopi ng the ory and "three re present s" important t hought a nd the scientific Outl ook on development, im plement t he party's basi c pr ogram for the pr imary stage of s ociali sm, adhere to t he corre ct politi cal orientation, maintai n hig hly consistent w ith the CPC Ce ntral Comm ittee, is good at t heorie s of socialism wit h Chine se characteri stics t o ana lyze and s olve pr oblem s. Third, strengt heni ng the party s pirit and the w orld tra nsformation, per severance of the party Constitution, relive Party vows t o establish corre ct worl d Outlo ok, Outlook on life and the worl d, pra ctically em bodies i deals and be liefs into action, combi ne l ofty ideals a nd practi cal activitie s, transformi ng the obj ective w orld, actively participate i n the great pra ctice of buil ding s ocialism with Chi nese chara cteristics. 2, kee p the purpose i n concept, cha nging the styl e of work. First, kee p in mi nd that the pur pose of servi ng, a dhere to a ssumi ng power for the people, kee p in mind the people and care a bout pe ople, a nd t he joys a nd sorrows of the masse s, ... According to city dis cipli ne, and municipal organi zation Departme nt requireme nts, today we hel d "implement impl ementation independ ent Commissi on against corr upti on gui deli nes effective strengt heni ng led cadres style construction" topi c democratic life, ma in task i s cl ose conta ct thought, and work a ctual , control che ck distri ct Standi ng Committee team and the personal in im plementatio n independent Commissi on agai nst corr upti on guideli nes Shang exists of probl em, in-de pth carrie d out critici sm and self-criti cal, further clear re ctification dire ction and mea sures , effective enhanced cl ean politi cs of cons cious ness a nd i nitiative, firm set good of ruli ng image. Before t he meeting, t he way we take survey s soli cited a vie ws, combe d, related to team buil ding

π 1 4x+ ?. ∴g(x)= sin? 6? 2 ? π π π 7 ∵0≤x≤ ,∴ ≤4x+ ≤ π. 4 6 6 6 π π 1 因此当 4x+ = 时,g(x)有最大值 ; 6 2 2 π 7 1 当 4x+ = π 时,g(x)有最小值- . 6 6 4 1 1 故 g(x)的最大值、最小值分别为 与- . 2 4 π? 12. (2012· 湖南)已知函数 f(x)=Asin(ωx+φ)? ?x∈R,ω>0,0<φ<2?的部分图象如图所示.

(1)求函数 f(x)的解析式; π π x- ?-f?x+ ?的单调递增区间. (2)求函数 g(x)=f? ? 12? ? 12? 解 11π 5π? (1)由题设图象知,周期 T=2? ? 12 -12?=π,

2π 所以 ω= =2. T 5π ? 因为点? ?12,0?在函数图象上, 5π ? 所以 Asin? ?2×12+φ?=0, 5π ? 即 sin? ? 6 +φ?=0. π 5π 5π 4π 又因为 0<φ< ,所以 < +φ< . 2 6 6 3 5π π 从而 +φ=π,即 φ= . 6 6 π 又点(0,1)在函数图象上,所以 Asin =1,解得 A=2. 6 π? 故函数 f(x)的解析式为 f(x)=2sin? ?2x+6?. π π ? ?x+ π ? π? x- ? ? (2)g(x)=2sin?2? ? ? 12?+6?-2sin?2? 12?+6?

proje ct work, cadres , cadre s sele ction and ot her as pects of a total of 19, furt her defined t he dire ction of rectificati on, enhancing the perti nence and effectivene ss of democrati c life. 能 鉴 生 高 提 步 一 歌 诗 代 2古 修 必 是 图 意 置 设 元 单 本 。 受 美 审 富 丰 得 获 力 魅 术 艺 悟 析 赏 行 进 品 作 对 面 方 等 巧 技 现 表 、 容 内 从 习 学 , 上 础 基 的 知 感 体 整 在

Good for thi s meeting, we requested t he Standing Committee of the munici pal party Committee, munici pal Secretary General Ta ng Wenjin, t he City Commissi on for disci pli ne inspe ction Standi ng Committee Ya ng Xu, Jiang Jixue, D eputy Direct or of the personnel office, a nd ot her lea ding comrade s prese nt gui dance all ows us to warm a ppla use for their welcome a nd tha nks!

Below, I first District Committee member of the 20XX team annua l democratic meeti ng implementati on of the corrective meas ures, a s well as mem ber of the team a nd of my own report gui delines for the im plementation of the indepe nde nt Commission against corr upti on stateme nt invited lea ders a nd comrade s criticis m. First, annual party on t he 20 XX team, M ember of democratic life acti on pl an impl ementation year 20 XX, distri ct

democrati c meeting a mem ber of the team on "study and practi ce t he s cientific Outl ook on devel opment" theme, find a pr oject supporting strong e nough, t he industry well e nough, urba n constructi on ma nagement leve l nee ds t o be im proved, liveli hood im pr ovement needs to be strengt hened, district team itse lf, such as t he five as pects . Year of 20 XX, w e find out t he probl ems menti one d above, based on act ual Shunqing construction and devel opme nt, conscie ntiously s um up improveme nts, a chievi ng sig nificant devel opment re sults and effectivenes s of their work. (A) highlight the project handle, mai ntain high gr owth of investment. A d here to t he strategy as a Foundati on, carrying out proje cts to promote increased stamina im portant. One is t o increase t he inte nsity of proje cts towards. Actively s eek nati onal and provi nci al policy support, superi or special tra nsfer pay ments, a variety of a dditi onal i ncome will t op 7 00 million Yuan, a num ber of key infrastructure proj ects, l ivelihood proje cts, i ndustrial proje cts int o the cage. Second, i ncreasi ng the pr oject attra cts. T his year a total of 23 sig ned a major proj ect, of whi ch 14 billion proje ct, China Metall urgical group, vanke gr oup, G uang dong he ngda gr oup, Taiwan Ruentex group, on the RI group, S henzhe n Kaisa, jife ng agricult ural machi ner y, Mer cede s-Be nz, A udi 4S store and ot her large e nterpri ses a nd proj ects have s ettled i n Shunqing. Third, strengt hen proj ect construction. Annua l impleme ntation focus pr oje ct 39 a , fixed as sets inve stment total w ill bre akthrough 12 bi llion yua n, created district y ilai history high, S outh door dam, and five in shop ol d city tra nsformation, and Yi ng China industrial concentrated district construction, a nd city main r oad construction, a nd Nort heast steam Trade Ce nter, and modern farmers i ndustry Park, and vocational educati on city, and low rental, and als o room constr ucti on, a nd features blocks buil d, a nd farme rs market transformati on, and "rural versi on" Street transformation, focus engine ering s peed up implementation, effectivene ss obviousl y. Expe cted to be achieved t his year, are a-wi de G DP 17 billion

thrift of excellent traditi onal a nd style lack dee p of understa ndi ng, one -si ded t hink i n now of good s ituation Xi a, economic sm ooth more fast devel opme nt, and reform made major progres s, a nd people living significantly improve , and s ocial t he care er made new pr ogress, no ne cessary always ha rd has, no a warene ss to Chi na als o ha s many poverty area, a nd al so has many poverty population of exists, m ore living impr ove ha s, more need ke ep hard of style . Thre e is not strictly honest. Total thought units i s a water se ctor, cle an s elf-dis cipline away from himself too far, no real pr oce ssing good living of impr ove and har d, and thrift excell ent traditional of relationshi p, no effective do comply wit h Constituti on a nd party of regulati ons must from I do up, no right mer cy good bitter Le, a nd wealt h of relati ons hip, no rig ht aware ness t o in comply with Constitution and party of regulations as pect s everyone ha s accountability. Four, f uture directi on a nd impr ovement meas ures 1, belief a nd faith, strengthe n party s pirit. One i s to firmly establi sh t he noble ideal s of struggl e for the i deals of communism, communist str uggle for life, ready t o sa crifice everyt hing for t he party a nd t he people. Se cond is t o conti nuously im prove the quality and standard of political, cons cienti ously study Deng Xi aopi ng the ory and "three re present s" i mportant t hought a nd the scientific Outl ook on development, im plement t he party's basi c pr ogram for the pr imary stage of s ociali sm , adhere to t he corre ct politi cal orientation, maintai n hig hly consistent w ith the CPC Ce ntral Committee, is good at t heorie s of socialism wit h Chine se characteri stics t o ana lyze and s olve pr oblem s. Third, strengt heni ng the party s pirit and the w orld tra nsformation, per severance of the party Constitution, relive Party vows t o establish corre ct worl d Outlook, Outlook on life and the worl d, pra ctically em bodies i deals and be liefs into action, combi ne l ofty ideals a nd practi cal activitie s, transformi ng the obj ective w orld, actively participate i n the great pra ctice of buil ding s ocialism with Chi nese chara cteristics. 2, kee p the purpose i n concept, cha nging the styl e of work. First, kee p in mi nd that the pur pose of servi ng, a dhere to a ssumi ng power for the peo ple, kee p in mind the people and care a bout pe ople, a nd t he joys a nd sorrows of the masse s, ... According to city dis cipli ne, an d municipal organi zation Departme nt requireme nts, today we hel d "implement impl ementation independent Commissi on against corr upti on gui deli nes effective strengt heni ng led cadres style construction" topi c democratic life, main task i s cl ose conta ct thought, and work a ctual , control che ck distri ct Standi ng Committee team and the personal in im plementation independent Commissi on agai nst corr upti on guideli nes Shang exists of probl em, in-de pth carrie d out critici sm and self-criti cal, further clear re ctification dire ction and mea sures , effective enhanced cl ean politi cs of cons cious ness a nd i nitiative, firm set good of ruli ng image. Bef ore t he meeting, t he way we take survey s soli cited a vie ws, combe d, related to team buil ding

π? =2sin 2x-2sin? ?2x+3? 1 3 =2sin 2x-2? sin 2x+ cos 2x? 2 ?2 ? π 2x- ?. =sin 2x- 3cos 2x=2sin? 3? ? π π π 由 2kπ- ≤2x- ≤2kπ+ ,k∈Z, 2 3 2 π 5π 得 kπ- ≤x≤kπ+ ,k∈Z. 12 12 π 5π? 所以函数 g(x)的单调递增区间是? ?kπ-12,kπ+12?,k∈Z. 13.已知函数 f(x)= 3sin 2x-2sin2x+2,x∈R. (1)求函数 f(x)的最大值及对应的 x 的取值集合; (2)画出函数 y=f(x)在[0,π]上的图象.



π? (1)f(x)= 3sin 2x+cos 2x+1=2sin? ?2x+6?+1,

π π 当 2x+ =2kπ+ (k∈Z)时,f(x)取最大值 3, 6 2 π 此时 x 的取值集合为{x|x=kπ+ ,k∈Z}. 6 (2)列表如下: x π 2x+ 6 y 图象如下: 0 π 6 2 π 6 π 2 3 5π 12 π 1 2π 3 3π 2 -1 11π 12 2π 1 π 13π 6 2

proje ct work, cadres , cadre s sele ction and ot her as pects of a total of 19, furt her defined t he dire ction of rectificati on, enhancing the perti nence and effectivene ss of democrati c life. 能 鉴 生 高 提 步 一 歌 诗 代 2古 修 必 是 图 意 置 设 元 单 本 。 受 美 审 富 丰 得 获 力 魅 术 艺 悟 析 赏 行 进 品 作 对 面 方 等 巧 技 现 表 、 容 内 从 习 学 , 上 础 基 的 知 感 体 整 在

Good for thi s meeting, we requested t he Standing Committee of the munici pal party Committee, munici pal Secretary General Ta ng Wenjin, t he City Commissi on for disci pli ne inspe ction Standi ng Committee Ya ng Xu, Jiang Jixue, D eputy Direct or of the personnel office, a nd other lea ding comrade s prese nt gui dance all ows us to warm a ppla use for their welcome a nd tha nks!

Below, I first District Committee member of the 20XX team annua l democratic meeti ng implementati on of the corrective meas ures, a s well as mem ber of the team a nd of my own report gui delines for the im plementation of the indepe nde nt Commission against corr upti on stateme nt invited lea ders a nd comrade s criticis m. First, annual party on t he 20 XX team, M ember of democratic life acti on pl an impl ementation year 20 XX, distri ct

democrati c meeting a mem ber of the team on "study and practi ce t he s cientific Outl ook on devel opment" theme, find a pr oject supporting strong e nough, t he industry well e nough, urba n constructi on ma nagement leve l nee ds t o be im proved, liveli hood impr ovement needs to be strengt hened, district team itse lf, such as t he five as pects . Year of 20 XX, w e find out t he probl ems menti one d above, based on act ual Shunqing construction and devel opme nt, conscie ntiously s um up improveme nts, a chievi ng sig nificant devel opment re sults and effectivenes s of their work. (A) highlight the project handle, mai ntain high gr owth of investment. A dhere to t he strategy as a Foundati on, carrying out proje cts to promote increased stamina im portant. One is t o increase t he inte nsity of proje cts towards. Actively s eek nati onal and provi nci al policy support, superi or special tra nsfe r pay ments, a variety of a dditi onal i ncome will t op 7 00 million Yuan, a num ber of key infrastructure proj ects, l ivelihood proje cts, i ndustrial proje cts int o the cage. Second, i ncreasi ng the pr oject attra cts. T his year a total of 23 sig ned a major proj ect, of whi ch 14 billion proje ct, China Metall urgical group, vanke gr oup, G uang dong he ngda gr oup, Taiwan Ruentex group, on the RI group, S henzhe n Kaisa, jife ng agricult ural machi ner y, Mer cede s-Be nz, A udi 4S store and ot her large e nterpri ses a nd proj ects have s ettled i n Shunqing. Third, strengt hen proj ect construction . Annua l impleme ntation focus pr oje ct 39 a , fixed as sets inve stment total w ill bre akthrough 12 billion yua n, created district y ilai history high, S outh door dam, and five in shop ol d city tra nsformat ion, and Yi ng China industrial concentrated district construction, a nd city main r oad construction, a nd Nort heast steam Trade Ce nter, and modern farmers i ndustry Park, and vocational educati on city, and low rental, and als o room constr ucti on, a nd features blocks buil d, a nd farmers market transformati on, and "rural versi on" Street transformation, focus engine ering s peed up implementation, effectivene ss obviousl y. Expe cted to be achieved t his year, are a-wi de G DP 17 billion

thrift of excellent traditi onal a nd style lack dee p of understa ndi ng, one -si ded t hink i n now of good s ituation Xi a, economic sm ooth more fast devel opme nt, and reform made major progres s, a nd people living significantly improve , and s ocial t he care er made new pr ogress, no ne cessary always ha rd has, no a warene ss to Chi na als o ha s many poverty area, a nd al so has many poverty population of exists, m ore living impr ove ha s, more need ke ep hard of style . Thre e is not strictly honest. Total thought units i s a water se ctor, cle an s elf-dis cipline away from himself too far, no real pr oce ssing good living of impr ove and har d, and thrift excell ent traditional of relationshi p, no effective do comply with Constituti on a nd party of regulati ons must from I do up, no right mer cy good bitter Le, a nd wealt h of relati ons hip, no rig ht aware ness t o in comply with Constitution and party of regulations as pect s everyone ha s accountability. Four, f uture directi on a nd impr ovement meas ures 1, belief a nd faith, strengthe n party s pirit. One i s to firmly establi sh t he noble ideal s of struggl e for the i deals of communism, communist str uggle for life, ready t o sa crifice everyt hing for t he party a nd t he people. Se cond is t o conti nuously im prove the quality and standard of political, cons cienti ously study Deng Xi aopi ng the ory and "three re present s" important t hought a nd the scientific Outl ook on development, im plement t he party's basi c pr ogram for the pr imary stage of s ociali sm, adhere to t he corre ct politi cal orientation, maintai n hig hly consistent w ith the CPC Ce ntral Comm ittee, is good at t heorie s of socialism wit h Chine se characteri stics t o ana lyze and s olve pr oblem s. Third, strengt heni ng the party s pirit and the w orld tra nsformation, per severance of the party Constitution, relive Party vows t o establish corre ct worl d Outlo ok, Outlook on life and the worl d, pra ctically em bodies i deals and be liefs into action, combi ne l ofty ideals a nd practi cal activitie s, transformi ng the obj ective w orld, actively participate i n the great pra ctice of buil ding s ocialism with Chi nese chara cteristics. 2, kee p the purpose i n concept, cha nging the styl e of work. First, kee p in mi nd that the pur pose of servi ng, a dhere to a ssumi ng power for the people, kee p in mind the people and care a bout pe ople, a nd t he joys a nd sorrows of the masse s, ... According to city dis cipli ne, and municipal organi zation Departme nt requireme nts, today we hel d "implement impl ementation independ ent Commissi on against corr upti on gui deli nes effective strengt heni ng led cadres style construction" topi c democratic life, ma in task i s cl ose conta ct thought, and work a ctual , control che ck distri ct Standi ng Committee team and the personal in im plementatio n independent Commissi on agai nst corr upti on guideli nes Shang exists of probl em, in-de pth carrie d out critici sm and self-criti cal, further clear re ctification dire ction and mea sures , effective enhanced cl ean politi cs of cons cious ness a nd i nitiative, firm set good of ruli ng image. Before t he meeting, t he way we take survey s soli cited a vie ws, combe d, related to team buil ding

proje ct work, cadres , cadre s sele ction and ot her as pects of a total of 19, furt her defined t he dire ction of rectificati on, enhancing the perti nence and effectivene ss of democrati c life. 能 鉴 生 高 提 步 一 歌 诗 代 2古 修 必 是 图 意 置 设 元 单 本 。 受 美 审 富 丰 得 获 力 魅 术 艺 悟 析 赏 行 进 品 作 对 面 方 等 巧 技 现 表 、 容 内 从 习 学 , 上 础 基 的 知 感 体 整 在

Good for thi s meeting, we requested t he Standing Committee of the munici pal party Committee, munici pal Secretary General Ta ng Wenjin, t he City Commissi on for disci pli ne inspe ction Standi ng Committee Ya ng Xu, Jiang Jixue, D eputy Direct or of the personnel office, a nd ot her lea ding comrade s prese nt gui dance all ows us to warm a ppla use for their welcome a nd tha nks!

Below, I first District Committee member of the 20XX team annua l democratic meeti ng implementati on of the corrective meas ures, a s well as mem ber of the team a nd of my own report gui delines for the im plementation of the indepe nde nt Commission against corr upti on stateme nt invited lea ders a nd comrade s criticis m. First, annual party on t he 20 XX team, M ember of democratic life acti on pl an impl ementation year 20 XX, distri ct

democrati c meeting a mem ber of the team on "study and practi ce t he s cientific Outl ook on devel opment" theme, find a pr oject supporting strong e nough, t he industry well e nough, urba n constructi on ma nagement leve l nee ds t o be im proved, liveli hood im pr ovement needs to be strengt hened, district team itse lf, such as t he five as pects . Year of 20 XX, w e find out t he probl ems menti one d above, based on act ual Shunqing construction and devel opme nt, conscie ntiously s um up improveme nts, a chievi ng sig nificant devel opment re sults and effectivenes s of their work. (A) highlight the project handle, mai ntain high gr owth of investment. A d here to t he strategy as a Foundati on, carrying out proje cts to promote increased stamina im portant. One is t o increase t he inte nsity of proje cts towards. Actively s eek nati onal and provi nci al policy support, superi or special tra nsfer pay ments, a variety of a dditi onal i ncome will t op 7 00 million Yuan, a num ber of key infrastructure proj ects, l ivelihood proje cts, i ndustrial proje cts int o the cage. Second, i ncreasi ng the pr oject attra cts. T his year a total of 23 sig ned a major proj ect, of whi ch 14 billion proje ct, China Metall urgical group, vanke gr oup, G uang dong he ngda gr oup, Taiwan Ruentex group, on the RI group, S henzhe n Kaisa, jife ng agricult ural machi ner y, Mer cede s-Be nz, A udi 4S store and ot her large e nterpri ses a nd proj ects have s ettled i n Shunqing. Third, strengt hen proj ect construction. Annua l impleme ntation focus pr oje ct 39 a , fixed as sets inve stment total w ill bre akthrough 12 bi llion yua n, created district y ilai history high, S outh door dam, and five in shop ol d city tra nsformation, and Yi ng China industrial concentrated district construction, a nd city main r oad construction, a nd Nort heast steam Trade Ce nter, and modern farmers i ndustry Park, and vocational educati on city, and low rental, and als o room constr ucti on, a nd features blocks buil d, a nd farme rs market transformati on, and "rural versi on" Street transformation, focus engine ering s peed up implementation, effectivene ss obviousl y. Expe cted to be achieved t his year, are a-wi de G DP 17 billion



热文推荐
友情链接: 简历 面试求职范文 职业规划 自我管理 社交礼仪 76242百科