一、单选题(共5小题)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c9c55592e113b5334c10296cab9aef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a29a22a8bdd026f1199a4e418afcd240.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc903c19f7b3b0aa58cdb0cdb7b062a0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bb2ae25747e3c29ed50d717fabdde95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e4663b1ae5d3c526d6f3e6b3ff9a096.png)
A.1 | B.-1 | C.![]() | D.![]() |
【知识点】 正、余弦齐次式的计算解读 二倍角的余弦公式解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907a17d455f83919626ad8da07b64a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18b98547a5a92fd392dd796008f1fe89.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8bad81d4a0c831c94e116235a690f66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2179dbb714a29caf4a77a6245014082e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
【知识点】 三角函数的化简、求值——诱导公式解读 给值求值型问题解读
二、填空题(共5小题)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e253fac56345b17eb0ca906c2c22d7c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a388163cb40aeca41a5eeda905ac27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90e888ea14da893971e13858945bf0cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a18798408a1b91fdb12deb79f0b562a.png)
【知识点】 已知正(余)弦求余(正)弦解读 二倍角的余弦公式解读
【知识点】 由终边或终边上的点求三角函数值解读 二倍角的正弦公式解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdb7a488910743dc5c63afb394b87e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f74632cfc1a161e444040355e7395444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d842391ce0710a4a0d38d1107c133ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78d26af5438a7f77f1b22a07c28c110f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5270846a2d8abcb9681994fb87b4a30b.png)
三、解答题(共5小题)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f8783429be686df75afcd56e847dfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a29a22a8bdd026f1199a4e418afcd240.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9146fc0a63e5c14a8fa46573e60c07ba.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab89b0e6f3fe4a881cd8397a56b4d4a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68006ca05c3321526fc58cac4b53ebb8.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1f331c3d96c5812a620e326373747eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f86a59e59ddaebfced2ff6f138d5081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/976921e92542a0649443b7ccee0423cb.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf6e7f1cecc29e9f1711021be3613fbb.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0076ab8aca2bc60ae407d7ea5b1c3d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d88fd7361500cc27a71d40a0a7d835a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e57e22b4524d25c74497c916baf0f65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/953b78787e8b2454510bedbfa14b7167.png)
(1)求cos(α+β)的值;
(2)求tan2β的值.