(1)已知
.求
的值;
(2)已知
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb90f0294dfff41f05b0fc64d7a06e4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8105b78a94eecf96b00a643f02c16bee.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18935fc1cb962f74384095b76aa25531.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f58f78cb224a765a658f29ac0eba5f0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531048e8283c7d47213de719cc386c86.png)
更新时间:2023-03-02 23:27:50
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