计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9de6c9a7ee56587a7228e8bb99cba42.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9de6c9a7ee56587a7228e8bb99cba42.png)
更新时间:2020-10-05 19:17:50
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【推荐1】
的平方根是_________
的绝对值是______ ,
倒数是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39f3fae1304b36c0aa24d98d4ae0508b.png)
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【推荐2】对于有理数
,定义一种新运算“
”,规定
.计算
的值是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3973973d47888914867350aa2a83981.png)
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