已知
为第二象限角,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/982ffa6571be0ead5ac858a82a5892e5.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a9d1b8269a6ff06ee8a1f45cfe72a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/982ffa6571be0ead5ac858a82a5892e5.png)
21-22高三上·广东·阶段练习 查看更多[2]
更新时间:2022-01-05 20:22:31
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