(1)化简:
;
(2)已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b1cb873dcc62ecb27eb2a50eb6e2dc2.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a5448c1068d3d80e964979a9e43feb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb6342d69df0ed7786600153c9fab2ce.png)
22-23高一下·四川遂宁·期中 查看更多[2]
更新时间:2023-04-19 15:23:17
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