先化简,再求值:
,其中
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99cc941ba17164d3fcf91c779ba8c8e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4479d54b1eced7c425e2deaefb18c233.png)
2024·广西钦州·一模 查看更多[1]
更新时间:2024-05-24 15:27:47
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