名校
解题方法
1 . 已知
是第四象限角,
,则
的值分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/573e1c0d7cedbd7581b8401d64fdba44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a6aad40c02d5217af4535853938065b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
2 . (Ⅰ)求值:
;
(Ⅱ)若角
的终边经过点
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a338d0f94aab599d6ebdf9e9844e1a7.png)
(Ⅱ)若角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9417dec6c243b960ab0018a0bc4e371b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74716f01fd165a2b697ed98934f056b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
3 . 已知
角终边经过点
,则
的值分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f219e145bb4c8409e11f0333f708ebe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a6aad40c02d5217af4535853938065b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次