已知
为锐角,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01196e5f285b8bc35543367e23fd41fc.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a8fde154f078a66340eed4ea7b906a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01196e5f285b8bc35543367e23fd41fc.png)
更新时间:2023-01-05 17:25:01
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【知识点】 sinα±cosα和sinα·cosα的关系解读
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【推荐2】已知
,
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69b4cab645c97f6d1710f803ef6a8436.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/281805b9dfe2162215dfe6b5ad6d7b03.png)
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