定义“*”是一种运算符号,规定
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8193cb038c839df8210f6f7520e9f9c.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d1636c7a942d6d51486c89cd816141.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8193cb038c839df8210f6f7520e9f9c.png)
更新时间:2023-11-07 10:58:15
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【知识点】 两个有理数的乘法运算
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较易
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【推荐2】已知a,b两数在数轴上对应点的位置如图所示,则下列结论:①
;②
;③
;④
;⑤![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c6ce02259a85ea191541f4a708738f1.png)
,其中正确的是(填序号)_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3b4c102ae0e48d1a26964c466461800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a69756509031fddf6c116b656bb009f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2288ef955ecbbd9c8198101112c332bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c27dd7d52809f198bec7854492661aa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c6ce02259a85ea191541f4a708738f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f5db40dc52af59a2bd3739da3653e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/4384b0fa-a64c-41bf-a117-e5e7974b755b.png?resizew=321)
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