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1、1.将 300o化为弧度为（）A43；B53；C76；D74；2.如果点)cos2,cos(sinP位于第三象限，那么角所在象限是（）.第一象限 B.第二象限 C.第三象限 D.第四象限3下列选项中叙述正确的是（）A三角形的内角是第一象限角或第二象限角B锐角是第一象限的角C第二象限的角比第一象限的角大D终边不同的角同一三角函数值不相等4下列函数中为偶函数的是（）Asin|yx B2sinyx Csinyx Dsin1yx5 已知函数sin()yAxB的一部分图象如右图所示，如果0,0,|2A，则（）A.4AB.1C.6D.4B6函数3sin(2)6yx的单调递减区间（）A5,1212kk()k
2、Z B 511,1212kk()kZC,36kk()kZ D2,63kk()kZ7已知是三角形的一个内角,且32cossin,则这个三角形()A锐角三角形 B 钝角三角形C不等腰的直角三角形 D等腰直角三角形8)2cos()2sin(21等于（）Asin2 cos2 B cos2sin2 C（sin2 cos2）Dsin2+cos2 9若角的终边落在直线y=2x上，则 sin的值为（）A.15 B.55 C.2 55 D.1210函数 y=cos2x 3cosx+2 的最小值是（）A2 B0 C41D6 11如果在第三象限，则2必定在（）A第一或第二象限B第一或第三象限 C 第三或第四象限D第
3、二或第四象12已知函数)sin(xAy在同一周期内，当3x时有最大值2，当 x=0 时有最小值-2，那么函数的解析式为（）Axy23sin2B)23sin(2xy C)23sin(2xyDxy3sin21二填空题（20 分）14、已知角 的终边经过点P(3，3)，则与 终边相同的角的集合是_ 131tan、2tan、3tan的大小顺序是14函数lg 1 tanyx的定义域是16函数sin(2)6yx的单调递减区间是。三计算题（70 分）17(15 分)已知角终边上一点P（4，3），求)29sin()211cos()sin()2cos(的值18(20 分)已知函数y=Asin(x+)+b(A0,
4、|,b 为常数)的 一段图象(如图)所示.求函数的解析式；求这个函数的单调区间.19已知43tan，求2coscossin2的值。三、（20 分）利用“五点法”画出函数)621sin(xy在长度为一个周期的闭区间的简图文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2
5、R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6
6、 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B1
7、0J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U
8、1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:
9、CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L
10、7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7 HZ10U2R6G6O6 ZI3B10J1C7U1文档编码:CK9N6L7A1U7
11、HZ10U2R6G6O6 ZI3B10J1C7U1（2）并说明该函数图象可由y=sinx（xR）的图象经过怎样平移和伸缩变换得到的。（8 分）三角函数单元测试参考答案题号1 2 3 4 5 6 7 8 9 10 11 122 答案B B B A C D B A C B D C 填空题(20)13x|x=2k 6，kZ 14.tan1tan2tan3 15.,24kkkZ16,63kkkZ17（15 分）.角终边上一点P（4，3）43tanxycos()sin()2119cos()sin()22sinsinsincostan3418（20 分）（1）解、先列表，后描点并画图文档编码:CP9S3H
12、4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编
13、码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C
14、9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9
15、ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O1
16、0M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X
17、6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP
18、9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G
19、6621x02232x3323538311y 0 1 0-1 0(2)把 y=sinx的图象上所有的点向左平移6个单位长度，得到)6sin(xy的图象，再把所得图象的横坐标伸长到原来的2 倍（纵坐标不变），得到)621sin(xy的图象。或把 y=sinx 的图象横坐标伸长到原来的2 倍（纵坐标不变），得到xy21sin的图象。再把所得图象上所有的点向左平移3个单位长度，得到)3(21sinxy，即)621sin(xy的图象。19（15 分）222222cossincoscossin)cos(sin2coscossin2 =222222tan11tantan2cossincoscossinsi
20、n2 =2522169114389)43(11)43()43(22220解:1.,23)(21minmaxyyA23.56,65)3(22bT易知代入得将点)0,2(,23)56sin(23xy,1,|)(10112kZkk则又.23)109sin(23.109xy2.xkkxkkxk5622.3356735221095622令令).(235335232109Zkkxkk)(235,6735Zkkk是单调递增区间，.)(235,335是单调递减区间Zkkk文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6
21、L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 H
22、R10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3
23、H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档
24、编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10
25、C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9
26、 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6文档编码:CP9S3H4S8X6 HR10O10M6L7C9 ZC10O10C9B2G6