(1)化简![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0f205d63195c9be3e9f992e9b7da9a9.png)
________ .
(2)若
,则化简![](https://staticzujuan.xkw.com/quesimg/Upload/formula/418c85cdbffd0fd448748fdd5b66fbdd.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0f205d63195c9be3e9f992e9b7da9a9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42f57158d9520eff8d257bed880c64d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/418c85cdbffd0fd448748fdd5b66fbdd.png)
19-20高一·全国·课后作业 查看更多[2]
更新时间:2020-08-11 21:30:55
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您最近一年使用:0次