名校
1 . 给出下列三个结论:
(1)若命题
为假命题,命题
为假命题,则命题“
”为假命题;
(2)命题“若
,则
或
”的否命题为“若
,则
或
”;
(3)命题“
”的否定是“
”,则以上结论正确的个数为
(1)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02475842a0c8318db41c5c38c3af7e66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0045a603e555d2d2a8ef634f9edf9951.png)
(2)命题“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34715101c66fa12ce6baf0a9c53f1672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7df955fc17e92fd86302f8c34664a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/744a6ed7240f6e89c9639214448f918f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e946a674113fce6e7cddfe47bdff92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88d6c5aada0e7ce24a8c14a631deabf.png)
(3)命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd0e6b81d938175498df976cea6453c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49197450b54946d981405bbfc71c7aa5.png)
A.3 | B.2 | C.1 | D.0 |
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2016-12-04更新
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358次组卷
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2卷引用:2015-2016学年贵州思南中学高二下学期期末理数学理试卷