1 . 下列命题中的假命题 是( )
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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2 . 下列说法正确的是( )
A.若![]() ![]() |
B.命题“![]() ![]() |
C.“若![]() ![]() ![]() ![]() ![]() ![]() |
D.若![]() ![]() |
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名校
3 . 已知命题
:在
中,若
,则
;命题
:向量
与向量
相等的充要条件是
且
.在下列四个命题中,是真命题的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b610c855735a35d4168ac6a0f72ef904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca51be437b1a97ca92aa1159ab71102c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab14f1db85f43583c37c416c1bcacd67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460e5ba67828c57daf2edb497fb52e56.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 下列命题正确的是( )
A.“![]() ![]() |
B.若给定命题![]() ![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.命题“若![]() ![]() ![]() ![]() |
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名校
5 . 命题
:“
,
”.命题
:“
,
”.下列结论判断正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bd052411b58a00a9e79c7319ea09186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d9cc03b30352813f3bda2020dbfd031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8645952ea14b25443f411d39bdec641e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa581ddb56a4ee203e527cccff7c103.png)
A.![]() |
B.![]() |
C.![]() ![]() ![]() |
D.![]() |
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2022-11-27更新
|
195次组卷
|
4卷引用:河北省保定市河北安国中学等4校2022-2023学年高三上学期11月期中数学试题
6 . 十七世纪法国数学家费马提出猜想:“当整数
时,关于
,
,
的方程
没有正整数解”.经历三百多年,于二十世纪九十年代中期由美国数学家安德鲁怀尔斯证明了费马猜想,使它终成为费马大定理根据前面叙述,则下列命题正确的个数为( )
(1)存在至少一组正整数组
是关于
,
,
的方程
的解;
(2)关于
,
的方程
有正有理数解;
(3)关于
,
的方程
没有正有理数解;
(4)当整数
时关于
,
,
的方程
有正实数解
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9153fb853cd99beec9e600a4eaf73fe8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28cf3ff103818976acf8756551e0234c.png)
(1)存在至少一组正整数组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b525d8c768efd801ab58bc4c0da9221e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92df637fff22981cee65cd4f21c73ebe.png)
(2)关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8feb34ae93f9c3bed799e81ed5c8200.png)
(3)关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8feb34ae93f9c3bed799e81ed5c8200.png)
(4)当整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029da2067b3564cee13879e402a89a01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28cf3ff103818976acf8756551e0234c.png)
A.0 | B.1 | C.2 | D.3 |
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解题方法
7 . 设
,则使得命题“若
,则
”为假命题的一组
的值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b26031a245327e84da97db4fdcde4485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50cec9339ce24e17e04107e326593021.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b15bd315b801f71bc30b8d772098614.png)
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2022-11-25更新
|
106次组卷
|
2卷引用:山东省济宁市微山县第二中学2022-2023学年高三上学期期中数学试题
8 . 命题“若
,则
”的否命题为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de04d0e0fc2d2e53757b793dec00366e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8073266cfa99b04190473d16b615a8.png)
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2022-11-24更新
|
108次组卷
|
2卷引用:贵州省毕节市金沙县2023届高三上学期期中教学质量检测数学(文)试题
名校
9 . 已知命题
:若函数
在
上具有单调性;命题
:函数
k在
上函数值恒为正.
(1)若命题p为假时,求实数k的取值范围;
(2)若
为真命题,
为假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/085d5e99656d06776801dbd30d765189.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a13f3df2e1a444f41bc132431848eaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f14f4853fad7d03c644a252d4e40cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(1)若命题p为假时,求实数k的取值范围;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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10 . 命题
:若
,则
或
; 命题
:若方程
有两个不相等的正根,则
,那么( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4fa766315491a4eddc7f3596b78a0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8d09b9fc9719ff6faf32254b9d48713.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfe436ba908c76027255f3a677bf0657.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed96a4869723b318e458de59d80342e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d6119aaaa6b3964bca3d41f9652fae6.png)
A.“![]() | B.“![]() |
C.“![]() | D.“![]() |
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