(1)已知
,求
;
(2)计算:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/536e072eb0439a5e5b430cd55a129374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/765c423f19f33b9957006f617e377f4a.png)
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af3fe8f528dc9dde57011f653542c9f7.png)
2022高三·全国·专题练习 查看更多[2]
更新时间:2021-07-31 10:33:08
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