化简求值:
,其中
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/120ea5483001bfca45c6f9e445161520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f57770796a401eef8d7144a98a42ab43.png)
2019·福建厦门·中考模拟 查看更多[3]
更新时间:2019-07-11 16:51:30
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