(完整word版)必修四第一章三角函数知识点及练习讲义.pdf

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1、高一数学下必修四第一章三角函数正角:按逆时针方向旋转形成的角1、任意角负角:按顺时针方向旋转形成的角零角:不作任何旋转形成的角2、角的顶点与原点重合，角的始边与x轴的非负半轴重合，终边落在第几象限，则称为第几象限角第一象限角的集合为36036090,kkk第二象限角的集合为36090360180,kkk第三象限角的集合为360180360270,kkk第四象限角的集合为360270360360,kkk终边在x轴上的角的集合为180,kk终边在y轴上的角的集合为18090,kk终边在坐标轴上的角的集合为90,kk3、与角终边相同的角的集合为360,kk4、已知是第几象限角，确定*nn所在象限的方

2、法：先把各象限均分n等份，再从x轴的正半轴的上方起，依次将各区域标上一、二、三、四，则原来是第几象限对应的标号即为n终边所落在的区域5、长度等于半径长的弧所对的圆心角叫做1弧度6、半径为r的圆的圆心角所对弧的长为 l，则角的弧度数的绝对值是lrPxyAOMT7、弧度制与角度制的换算公式：2360，1180，180157.38、若扇形的圆心角为为弧度制，半径为r，弧长为 l，周长为 C，面积为 S，则lr，2Crl，21122Slrr9、设是 一 个 任 意 大 小 的 角，的终 边 上 任 意 一 点的 坐 标 是,x y，它 与 原 点 的 距 离 是220r rxy，则sinyr，cosx

3、r，tan0yxx10、三角函数在各象限的符号：第一象限全为正，第二象限正弦为正，第三象限正切为正，第四象限余弦为正11、三角函数线：sin，cos，tan12、同角三角函数的基本关系：221 sincos12222sin1cos,cos1sin；sin2tancossinsintancos,costan13、三角函数的诱导公式：1 sin 2sink，cos 2cosk，tan 2tankk2 sinsin，coscos，tantan3 sinsin，coscos，tantan4 sinsin，coscos，tantan口诀：函数名称不变，符号看象限5 sincos2，cossin2文档编码

4、:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2

5、 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8

6、ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档

7、编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10

8、A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C

9、8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7

10、文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G76 sincos2，cossin2口诀：正弦与余弦互换，符号看象限14、函数sinyx的图象上所有点向左（右）平移个单位长度，得到函数sinyx的图象；再将函数sinyx的图象上所有点的横坐标伸长（缩短）到原来的1倍（纵坐标不变），得到函数sinyx的图象；再将函数sin

11、yx的图象上所有点的纵坐标伸长（缩短）到原来的倍（横坐标不变），得到函数sinyx的图象函数sinyx的图象上所有点的横坐标伸长（缩短）到原来的1倍（纵坐标不变），得到函数sinyx的图象；再将函数sinyx的图象上所有点向左（右）平移个单位长度，得到函数sinyx的图象；再将函数sinyx的图象上所有点的纵坐标伸长（缩短）到原来的倍（横坐标不变），得到函数sinyx的图象函数sin0,0yx的性质：振幅：；周期：2；频率：12f；相位：x；初相：函数sinyx，当1xx时，取得最小值为miny；当2xx时，取得最大值为maxy，则m axmi n12yy，maxmin12yy，21122xx

12、xx文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O

13、2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T

14、1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7

15、Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X

16、1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H

17、8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4

18、H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G715、正弦函数、余弦函数和正切函数的图象与性质：sinyxcosyxtanyx图象定义域RR,2x xkk值域1,11,1R最值当22xkk时，max1y；当22xkk时，min1y当2xkk时，max1y；当2xkk时，min1y既无最大值也无最小值周期性2

19、2奇偶性奇函数偶函数奇函数函数性质文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7

20、Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X

21、1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H

22、8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4

23、H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK

24、3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ

25、1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7单调性在2,222kkk上是增函数；在32,222kkk上是减函数在 2,2kkk上是增函数；在2,2kkk上是减函数在,22kkk上是增函数对称中心,0kk,02kk,02kk对称轴2xkkxkk无对称轴文档编码:CK3X1O2

26、O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1

27、Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y

28、6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1

29、O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8

30、T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H

31、7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3

32、X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7第一章三角函数综合练习一、选择题1.已知角的终边经过点0p（-3，-4），则)2cos(的值为（）A.54 B.53 C.54 D.532.半径为cm，圆心角为120所对的弧长为（）A.3cmB.23cmC.23cmD.223cm3.函数12sin()34yx的周期、振幅、初相分别是（）

33、A.3，2，4B.3，2，12C.6，2，12D.6，2，44.sinyx的图象上各点纵坐标不变，横坐标变为原来的12，然后把图象沿x轴向右平移3个单位，则表达式为（）A.1sin()26yxB.2sin(2)3yxC.sin(2)3yxD.1sin()23yx5已知函数f(x)sinx3(0)的最小正周期为，则该函数图像()A关于直线x4对称B关于点(3，0)对称C关于点(4，0)对称D关于直线x3对称6.如图，曲线对应的函数是（）Ay=|sinx|By=sin|x|Cy=sin|x|Dy=|sinx|7函数y=cos2x 3cosx+2的最小值是（）A2 B0 C41D6 文档编码:CK3

34、X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1

35、H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A

36、4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:C

37、K3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 H

38、Z1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL

39、5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码

40、:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G78函数y 3sin 2x6(x0，)的单调递增区间是()A.0，512B.6，23C.6，1112D.23，11129.已知函数sin()yAxB的一部分图象如右图所示，如果0,0,|2A，则（）A.4A B.1 C.6 D.4B10.已知1cos()63，则sin()3的值为（

41、）A.13B.13C.2 33D.2 3311.已知、是第二象限的角，且coscos，则（）A.;B.sinsin；C.tantan；D.以上都不对12.设()f x是定义域为R，最小正周期为32的函数，若cos,(0)(),2sin,(0)xxf xxx则15()4f等于()A.1 B.22 C.0 D.22二、填空题13函数xxfcos21)(的定义域是 _ 文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4

42、H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK

43、3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ

44、1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5

45、A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:

46、CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2

47、HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 Z

48、L5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G714若sin cossin cos2，则 sin cos 的值是 _.15、函数)32,6)(6cos(xxy的值域是16函数 f(x)=sinx+2|sinx|,x0,2 的图象与直线y=k 有且仅有两个不同的交点,则 k 的取值范围是_.三、解答题17.已知是第二象限角，sin()tan()()sin()cos(2)tan()f（1）化简()f；（2）若31sin()23，求()f的值18.已知tan3，求下列各式的值：（1）4sincos3sin5cos；（2）212sincoscos1

49、9（1）画出函数ysin62x在一个周期的函数图像；（2）求出函数的对称中心和对称轴方程文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1

50、O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8T1Q8C8 ZL5A4H7Y6G7文档编码:CK3X1O2O10A2 HZ1H8