a是
的整数部分,b是
的整数部分,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38cfacb377d5b320df5ecd63b6fa6a9.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fabce540f786af5ad4aed8ebd5e8120.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b11b53e957bf1f2cfb96b7e397988014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38cfacb377d5b320df5ecd63b6fa6a9.png)
更新时间:2021-03-13 16:46:37
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