命题“若
或
,则
”的逆否命题是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/187aed43c77967a71ff71ac8a98a005a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72f706fce25109d3c01b520cec36ed88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffb8898d840443e228d34d94056f081e.png)
更新时间:2020-11-04 11:29:25
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【知识点】 写出原命题的逆否命题及真假判断
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