已知
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74162be73f207fd855ce17d8e5aa040b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c5a05a11f731194a845e68a0479ce4.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23bab149a8ec630a0c4dc9031f850c33.png)
更新时间:2021-03-23 10:13:13
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