1 . 求值:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81ca6d176bf779319422dc3b176cb97a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/367fc4a7b44a1415f10883de723b4376.png)
您最近一年使用:0次
2020-03-11更新
|
374次组卷
|
2卷引用:山西省晋城市陵川一中2018-2019学年高一下学期期中数学试题
解题方法
2 . 化简:
(1)
;
(2)
(
为第四象限角).
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/489a2f08640a2a3b4e220ed7e3e5c75f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0c40ad6ab7741c3d3c39bb2061b04b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次