计算:
(1)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d74297d48fdd2d59a7bbb81a27e16f33.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88f8bccf98141c05a1a6d926c532912f.png)
更新时间:2020-07-29 08:40:47
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解答题-问答题
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较易
(0.85)
【推荐1】求下列各式的值:
(1)
; (2)
;
(3)
; (4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2096e8fec7ac1afac92df05f5e910ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7634acb3a275e7bf077ff7b5f7d55f6f.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5d1e608ce87f795a2d2f99249bb837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3712881016dfd8586aa99be5d394f90.png)
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