1 . 若
,用含
的式子表示![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e68a551acebeb287f0c0f73556e3c3d7.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381e3c2f409d4ac42d0f1d829824074e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e68a551acebeb287f0c0f73556e3c3d7.png)
您最近一年使用:0次
解题方法
2 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338457322c0cde3896ce23a7e724acca.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e48cadca1a604347c2811d6551ca930f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338457322c0cde3896ce23a7e724acca.png)
您最近一年使用:0次
解题方法
3 . 已知
、
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a2b8dae45cd30a752aedb1ca66c30a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59f07029c97c324d32f258f18a96654a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a51079fecb78ade95af7fadc5c837da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77c702d255158e9b4429cd6aab850f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a2b8dae45cd30a752aedb1ca66c30a.png)
您最近一年使用:0次
解题方法
4 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a2b8dae45cd30a752aedb1ca66c30a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21a0418cc140e08bd4b96304c31aeb63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a2b8dae45cd30a752aedb1ca66c30a.png)
您最近一年使用:0次
解题方法
5 . 已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cb72b09ff7b6f68260f1eeeedd5aa0.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f096d4a0c74b202f77cfc0fbd2ce0cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac16b594d8ba5c3001b11707429eb5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cb72b09ff7b6f68260f1eeeedd5aa0.png)
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解题方法
6 . 已知
,且
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e46d0336ea9893b942b928a9ee57a1c.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ffb6e00f1387145fd3300527c974544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d1c7571006978c5115a9a6bd764698a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e46d0336ea9893b942b928a9ee57a1c.png)
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解题方法
7 . 若
,且
,则
的值等于________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969b106918cf44777d177a0538da8cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5bec99b0f7da69dd2f6ef8e88c35b81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e387687ef705d7b6694aedde85a2e3a.png)
您最近一年使用:0次
2023-01-04更新
|
139次组卷
|
2卷引用:沪教版(2020) 必修第二册 单元训练 第6章 二倍角公式与三角变换的应用(B卷)
8 . 若
,
为第一象限角,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/324bef341a7f657af68e0d845b7d3115.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7251a923e0453c036b10ee0091568b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/324bef341a7f657af68e0d845b7d3115.png)
您最近一年使用:0次
9 . 若
,则x的一个可能的值是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/379a6f52b47731526848031b60752bf5.png)
您最近一年使用:0次
10 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7497c7fb1f4336a1d2382078e71e94a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c65d04f379f811cc271051011160f44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7497c7fb1f4336a1d2382078e71e94a.png)
您最近一年使用:0次