解题方法
1 . 已知
.
(1)求
的值;
(2)若
,且
是第三象限角,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cee80ef092371872ff2269f96910608.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ecd5f251e8a94a611cc98d239ff9575.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bbcecfcebf4c4493e22bfb978df4c86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1f5aef7c1ce9cf06633293b1747907c.png)
您最近一年使用:0次
名校
2 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2a74f70257e33e07d846341f7b821d5.png)
__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e09d4c8a7bb8e89438e6c49a990262d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2a74f70257e33e07d846341f7b821d5.png)
您最近一年使用:0次
名校
3 . 已知
,且
为第三象限角.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4faccb3c041bcebd07cb36d4116b545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfacecf735a9b41b424ed5db86879c09.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb9796cb33130efbd35ab799b21a3b28.png)
您最近一年使用:0次
2018-01-18更新
|
1551次组卷
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5卷引用:广西北流市2020-2021学年高一高中“农信杯”教学质量调研检测数学试题