解题方法
1 . (1)已知
,求
的值.
(2)设f (θ)=
, 求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b04d2187d6a1e789b8b27b6701243ce0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54915291b52fbd7a6282bfadb264802c.png)
(2)设f (θ)=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2414c95a7aac379859e51cb4f9a9a218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ecd5f251e8a94a611cc98d239ff9575.png)
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2 . 化简:(Ⅰ)
;
(Ⅱ)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79ccd6eb9e116f8d15abd5a3b80eaac.png)
(Ⅱ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f2a5773bae41e42a1a1206d6e26e180.png)
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名校
3 . 已知
,则
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e28b4a906d1c7c2a9e8d1dd73ccccf89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afa516de40f1dab8ac83c8e43c72cdc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2016-12-03更新
|
2557次组卷
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3卷引用:河北省邯郸市魏县第五中学2019-2020学年高一上学期第二次月考数学试题