名校
1 . (1)化简求值:
;
(2)若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4947ab0e3b3eaa7a3d0d16b38e6cd582.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b3739f2cddb3045d7d39d1f88a2f0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac767b538138b81695e2636177f5dc14.png)
您最近一年使用:0次
20-21高一·上海·假期作业
2 . 已知
,且
为第三象限角,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c379958a73f9d62c97bb3e1ce694b31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eacde1c42151734fdc60f3001b590de.png)
您最近一年使用:0次