(1)已知
,求
的值.
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a441b6ac22953641586174b86a3cd070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/203e2d4b0776752cb91275918de0fd64.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc80abb744cd5d06744f4e5c5fdd0320.png)
23-24八年级上·全国·课后作业 查看更多[2]
更新时间:2023-09-15 08:08:28
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