已知函数
.
(1)若
,求
的解集;
(2)若
为锐角,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d2e6efcab3921dfbae4a4d9457ed66f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a90f71a22daa4df7bd75c1e3e66fcb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f346d7c49b9c2d29dbaa254bbb5f65a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b966ccc15e8ebf3282301b8db680374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e1ac68aa01c4bfbeef78b366075ae3.png)
更新时间:2022-01-17 09:33:53
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