如图,锐角
和钝角
的终边分别与单位圆交于
,
两点,且
.
(1)求
的值;
(2)若点
的纵坐标为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/24/8a27b599-b99c-4888-84ec-f93a0dc1e3bc.png?resizew=155)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69b309a529dd2be8b9f9ac835d3003c9.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c07b8b18372f40f388640d878c57e6.png)
更新时间:2023-07-21 16:23:58
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