已知
.求
(1)
的值;
(2)
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a7de5b70003502e40b95b3b7d3d933.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22b5374da188eacc1f979258bd8bdcad.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de977a667914041845b6fe50cde173ea.png)
更新时间:2022-04-28 21:48:09
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