1 . 下列命题中正确的个数是( )
(1)
,
;(2)
,
;(3)
,且
,
;(4)
(
)的值域为
,(5)
,
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0c7a319f1fb9ef4cd6bd9eb5ab0c53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf2e2d1ee12723b26e4b417e91abd27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02fe85f6383f5b2aca40ab15ba4bc248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07cb8641d8c02d31db12022ef477de21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57970304053eb4e50ed085c5a9633bba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d367bc229ad62fe1c3c7213705c2f02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e01b6fb6a1c7a895df528382a5583444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebb9b1a345e3913be8753c2f67563c0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0c7a319f1fb9ef4cd6bd9eb5ab0c53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77e9f045884a8cb0b7beb87dfe11c767.png)
A.2 | B.3 | C.4 | D.5 |
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2 . 若命题
或
;命题
,则
是
的( )条件
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f413a63f6f653af66eb9655e58712d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba0f0ed5fa31a435df4c9a21da66dee9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdd7cfdabbf6e6b1214a32c10d429a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
A.充分不必要 | B.必要不充分 |
C.充要 | D.既不充分也不必要 |
您最近一年使用:0次
2020-03-17更新
|
157次组卷
|
2卷引用:2019届贵州省安顺市普通高中高三上学期期末考试数学(理)试题
名校
3 . 下列命题正确的是( )
A.存在![]() ![]() ![]() ![]() |
B.对任意![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
名校
4 . 下列说法正确的是( )
A.命题“![]() ![]() ![]() |
B.命题“已知![]() ![]() ![]() ![]() |
C.“![]() ![]() ![]() ![]() ![]() |
D.命题“若![]() ![]() |
您最近一年使用:0次
2016-12-03更新
|
711次组卷
|
2卷引用:2015届贵州省贵阳市普通高中高三上学期期末监测考试理科数学试卷
2011·贵州·模拟预测
5 . 给出下列四个命题:
①在空间,若四点不共面,则每三个点一定不共线;
②已知命题
,“非
为假命题”是“
或
是真命题”的必要不充分条件;
③若
,那么
;
④若奇函数
对于定义域内任意
都有
,则
为周期函数.
其中错误命题的序号为____________ .
①在空间,若四点不共面,则每三个点一定不共线;
②已知命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a550c916c64f621010e604a30ef67566.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d63b747a76213afe863d7f05431da48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d13a828975535efba2e25cdcf71988be.png)
④若奇函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7559fb6b4b5a4e8fc721675ab1775a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
其中错误命题的序号为
您最近一年使用:0次
6 . 下列四个命题正确的是
①设集合
,
,则“
”是“
”的充分不必要条件;
②命题“若
,则
”的逆否命题是“若
,则
”;
③若
是假命题,则
,
都是假命题;
④命题
:“
,
”的否定为
:“
,
”.
①设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c6ad2417b0e5dc98145b44732ca5c25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c460022e4de6884d078be24b38d519ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/582ad43edf388c096e7704d92340bf75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60aaae2faac3996688f00ab4ce66c830.png)
②命题“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/582ad43edf388c096e7704d92340bf75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5286186cb58bf265a2a96e5195d88d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dab92728b35ed5798e07a2b0095bfcc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a27dd329517f0dd8f1d0dfade6138ed4.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
④命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0c7a319f1fb9ef4cd6bd9eb5ab0c53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3bf2891d3042a6f18860d2361eac0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/371dfe9673b7df9d53e6d0dd6ad6f20f.png)
A.①②③④ | B.①③④ | C.②④ | D.②③④ |
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2017-02-16更新
|
320次组卷
|
2卷引用:2017届贵州遵义南白中学高三理上学期联考四数学试卷
7 . 下列命题正确的是
A.命题“![]() ![]() ![]() ![]() |
B.命题“若![]() ![]() ![]() ![]() |
C.命题“存在四边相等的四边形不是正方形”是假命题 |
D.命题“若![]() ![]() |
您最近一年使用:0次
8 . 下列命题错误的是
A.命题“若![]() ![]() ![]() |
B.若![]() |
C.命题p:存在![]() ![]() ![]() ![]() ![]() |
D.“![]() ![]() |
您最近一年使用:0次
9 . 下列命题中的假命题为
A.设![]() ![]() ![]() ![]() ![]() |
B.设随机变量![]() ![]() ![]() ![]() |
C.![]() |
D.要得到函数![]() ![]() ![]() |
您最近一年使用:0次