已知
.
(1)求
;
(2)若
,且
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9fbf538ae87b660c3a3424729b55d61.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55e187849eb698240cf551b0a6c6196c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e8a1959750cecb177f7c109f11d1a10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7edaaaa6f952f18e480ac22c36563ee0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eacde1c42151734fdc60f3001b590de.png)
更新时间:2022-02-15 22:23:34
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