计算:
(1)
;
(2)已知
,则
的值.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd0e9976012141fd3beb2a2ef5764ff0.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bbb7aafe7b447b25835dfb1d039ec5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22b7edd1bd86b07018a7b109f538aefc.png)
更新时间:2023-08-25 15:18:37
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适中
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(2)
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【推荐2】令
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【推荐1】若
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(2)
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