先化简,再求值:
,其中
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b27fe560daad4f607a103aaf36ca216.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
更新时间:2023-04-06 16:26:19
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解答题-计算题
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较易
(0.85)
【推荐2】先化简,再求值:(a+1﹣
)÷(
),其中a从﹣2,0,1,2中选一个你喜欢的数代入求值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3f6de8efca654d6525b7c5e1157252e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8992e3e98d4f8c30694291bf2f8e6ee0.png)
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