1 . 已知p:
则下列判断错误的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04905b43506b382740aaec50d477e7f0.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
2 . 设p:
,q:函数y=(3-x2)ex的单调递增区是(-3,1),则p与q的复合命题的真假是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/779798ce5b685990fb0972c786a2c0ad.png)
A.“p∨q”假 | B.“p∧q”真 | C.“¬q”真 | D.“p∨q”真 |
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3 . 已知命题
:
,
,命题
:
是
的充分不必要条件,则下列命题为真命题的是
![](https://img.xkw.com/dksih/QBM/2016/4/20/1572599536279552/1572599541858304/STEM/ba348569b5414be78aba938fb294b45f.png)
![](https://img.xkw.com/dksih/QBM/2016/4/20/1572599536279552/1572599541858304/STEM/0e35020bb3df4eee976497b5f40a7ef1.png)
![](https://img.xkw.com/dksih/QBM/2016/4/20/1572599536279552/1572599541858304/STEM/fc0f02193fe448a9b514aa2407cea0d1.png)
![](https://img.xkw.com/dksih/QBM/2016/4/20/1572599536279552/1572599541858304/STEM/69408996bc0f4fe98b5ad0a0b931e4c6.png)
![](https://img.xkw.com/dksih/QBM/2016/4/20/1572599536279552/1572599541858304/STEM/4d31a1a1a7f0498db5a2dacbc5e10cef.png)
![](https://img.xkw.com/dksih/QBM/2016/4/20/1572599536279552/1572599541858304/STEM/b99cf04f497e4e56a1b9c435d1575cff.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
4 . 下列关于否定结论“至多有两个解”的说法中,正确的是( )
A.有一个解 |
B.有两个解 |
C.至少有三个解 |
D.至少有两个解 |
您最近一年使用:0次
2016-12-04更新
|
227次组卷
|
4卷引用:2015-2016学年福建省上杭一中高二3月月考文科数学试卷
2015-2016学年福建省上杭一中高二3月月考文科数学试卷黑龙江省海林市朝鲜族中学人教版高中数学选修1-2同步练习:滚动习题第二章 推理与证明[范围2.1~2.2]【全国百强校】湖南省衡阳市第一中学2018-2019学年高二上学期期末考试数学(文)试题(已下线)第一章 推理与证明(基础过关)-2020-2021学年高二数学单元测试定心卷(北师大版选修2-2)
名校
5 . 若p,q为简单命题,则“p且q为假”是“p或q为假”的( )
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2016-12-04更新
|
215次组卷
|
3卷引用:2015-2016学年福建省漳州一中高二上学期期末文科数学卷
6 . ①命题“若
,则
”的逆否命题为:“若
,则
”.
②“
”是“
”的充要条件;
③若
为假命题,则
均为假命题.
④对于命题
:
,
, 则
:
,
.
上面四个命题中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fdf7d28b97fb6fe731703f80e122ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e30c903d8f8a05332af0b19e7e40df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a8a2a94168af9b16ce89271a5d8dc6b.png)
②“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37b0b55c3297ce66c96d1559d76971f4.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd5371a6f0f82c65dd22f75f8b807c1.png)
④对于命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2939abf9f1755ea304eeb1e73063cba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c5623033629495668207179c408c4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b5effca87ab4aafa3bc054d9a58b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad5fe274cfc8da2dacfb65801f344ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/491ef2ec844032e0c2ab9cc4a545dff3.png)
上面四个命题中正确的是( )
A.①② | B.②③ | C.①④ | D.③④ |
您最近一年使用:0次
2016-12-04更新
|
829次组卷
|
2卷引用:2015-2016学年福建省泉州市四校高二上期末理科数学试卷
解题方法
7 . 命题
:方程
表示双曲线,命题
:函数
的定义域为R,若命题
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/72ada08258589b083f99f357dc0a35dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44a0cde75eb75b1fc8efd34b15503301.png)
![](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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8 . 已知命题
函数
的最小正周期为
;命题
函数
的图象关于原点对称.则下列命题中为真命题的是
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572470454476800/1572470459817984/STEM/714680a4d8bb4f4a803f662cdb7b8f90.png)
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572470454476800/1572470459817984/STEM/4b79505ce48847eeb732e6f477026491.png)
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572470454476800/1572470459817984/STEM/65f2a6b0fa6c453b80c1cc4b17501671.png)
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572470454476800/1572470459817984/STEM/d21fe7594c8a49599929814a74995192.png)
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572470454476800/1572470459817984/STEM/195c88e4d0b64f6c9e0f514593001c0b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 命题P:函数y=
是增函数,命题q:对任意x都有
恒成立若“p或q”为真,“p且q”为假,求a的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b12ad7780e3dc75313f45cf916fdcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b597d48e5f177d03574f4b83d3eeb94e.png)
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10 . 已知p:x2-2x-3<0;q:
<0,若p且q为真,则x的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ebfca5d354cde868ef6477d499263b3.png)
您最近一年使用:0次