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1 . 命题“
,若
,则
”用反证法证明时应假设为__________ .
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eb5374855bb495fafbdace1c47e492a.png)
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2018-06-01更新
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7卷引用:四川省绵阳中学2022-2023学年高三上学期期末模拟检测试题