13-14高三上·江苏南通·阶段练习
名校
1 . 已知命题
:“正数
的平方不等于0”,命题
:“若
不是正数,则它的平方等于0”,则
是
的_________ .(从“逆命题、否命题、逆否命题、否定”中选一个填空).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
您最近一年使用:0次
2016-12-02更新
|
933次组卷
|
4卷引用:2014届江苏省启东市高三上学期第一次检测理科数学试卷
(已下线)2014届江苏省启东市高三上学期第一次检测理科数学试卷(已下线)2014届江苏省启东市高三上学期第一次检测文科数学试卷江苏省南通市海安高级中学2017-2018学年高二上学期期中数学(理)试题江苏省南通市海安高级中学2017-2018学年高二上学期期中数学(文)试题
2011·江苏南通·一模
2 . 命题“若实数a满足
,则
”的否命题是_____ 命题(填“真”或“假”).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51f5f7a36e251bbc424ccc127ebb2881.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca367a714be8992387e4c78a85de5b.png)
您最近一年使用:0次
3 . 给出下列四个命题
(1)命题“
,
”的否定是“
,
”;
(2)若
只有一个零点,则
;
(3)命题“若
且
,则
”的否命题为“若
且
,则
”;
(4)对于任意实数
,有
,
,且当
时,
,
, 则当
时,
;
(5)在
中,“
”是“
”的充要条件
其中正确的命题有__________ .填所有正确的序号)
(1)命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1984a78f4fa4bb93134765a89f3735ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1485a4756c56f1126b9825d5019d544c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd0168ae6cff218267c1c4934406d43.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7079fa5a3d47cfd4bc479e889aca6186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
(3)命题“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27f27cbb8185c1974d715ff95f8801c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d97c5dd615b7752e1eb6c139891f54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76478bcf12d74ea096b0a46bd6bdf649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200849ce71f53c0321506e27de437b8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b0a2c46148393f1d7104d75e03522bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c4ba63ab8d2e34c6714f87698852cff.png)
(4)对于任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b47144278d622b666fcff69aee5abc5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0f166efbfb9e65688fd02fe5d694b4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca54c030a524028f5d8a2074d5b4dea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7a3a0ca3089bc43ec4399457278f449.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0a5d10fecd4b5a0c2c2a77b5ce72e6.png)
(5)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62d9960b239298ba4f4861224b00eb15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbb60c8c689819d191bb1aebd622b98.png)
其中正确的命题有
您最近一年使用:0次
2016-12-03更新
|
878次组卷
|
2卷引用:2015届江苏省南通第一中学高三上学期期中考试理科数学试卷
2011·江苏南京·一模
4 . 命题“若一个数是负数,则它的平方数正数”的逆命题是_________ .
您最近一年使用:0次
10-11高三·江苏南通·阶段练习
5 . 命题:“若a,b,c成等比数列,则b2=ac”及其逆命题、否命题、逆否命题中正确的个数是______.
您最近一年使用:0次
6 . 命题“若
,则
”的否命题为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54969adfe007f7dacf556c4c863670b9.png)
您最近一年使用:0次