(1)求不等式组
的解集;
(2)计算:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77bfeaa22a806f1eaad03fcd6aa9c393.png)
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e12dd9763a894b4eb18e307f9c3d9983.png)
更新时间:2023-02-19 00:03:24
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