名校
1 . 用反证法证明命题:“若
,则
,
,
,
都为0”.下列假设中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a1fc050c552a0393e2ae794e3147f5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
A.假设![]() ![]() ![]() ![]() | B.假设![]() ![]() ![]() ![]() |
C.假设![]() ![]() ![]() ![]() | D.假设![]() ![]() ![]() ![]() |
您最近一年使用:0次
2021-09-17更新
|
438次组卷
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2卷引用:黑龙江省大庆市肇州县2021届高三下学期二校联考数学(文科) 试题
名校
2 . 用反证法证明命题:“若
,则
至少有一个大于0.”下列假设中正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ecda7bfb0a2043306bf7707a136ad0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
A.假设![]() ![]() | B.假设![]() ![]() |
C.假设![]() | D.假设![]() ![]() |
您最近一年使用:0次
2019-06-01更新
|
470次组卷
|
7卷引用:黑龙江省大庆市铁人中学2020-2021学年高二上学期期末考试数学(理)试题