名校
解题方法
1 . 下列式子计算结果为
的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2 . (1)已知角
的终边经过点
,求
的值.
(2)计算
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135d867eac30e5a4cff409f70464a3fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/113e2ccca888a4ff6d7b866a977f0eaa.png)
(2)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59e1aee7501a1fb9440e19b113565ed2.png)
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名校
解题方法
3 . 已知函数f(x)=4sinxcos(x
)+1.
(1)求f(
)的值;
(2)求f(x)的最小正周期;
(3)已知
,且
,求cos(2α)的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb7e4140509c3f5e185935291bf5c7e.png)
(1)求f(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e5d292fd16e8f69c75e6c88295bcda6.png)
(2)求f(x)的最小正周期;
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55f502cd79b8b1df660b5c9b7d93e3bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bd343186aca9a9b17ed1f4d1a882a8b.png)
您最近一年使用:0次