求下列各式中
的值:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414e86599812a9dfcf2cec11c3c9ddc4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ade58ac7afb749990357391428ca578e.png)
更新时间:2024-04-20 16:12:49
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【推荐2】已知
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