名校
1 . 命题
:方程
有两个不相等的正实根,命题
:方程
无实根,若“
或
”为真命题,“
且
”为假命题,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36bcb4df710cf7fc5a4159380ae5451e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/624d32463dfa336c88216b1bd7cd91da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
2 . 设p:实数x满足
,其中
;q:实数x满足
.
(1)若
,且p和q均为真,求实数x的取值范围;
(2)若q是p的充分条件,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258fe80c99905bd0c525aa703f2444e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d712e5dc451ae02ef4442ba59fb25a3a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
(2)若q是p的充分条件,求实数a的取值范围.
您最近一年使用:0次
名校
解题方法
3 . 已知函数
的导函数为
,
,且
在R上为严格增函数,关于下列两个命题的判断,说法正确的是( )
①“
”是“
”的充要条件;
②“对任意
都有
”是“
在R上为严格增函数”的充要条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d0c99ddd028f0bc3b1d64924ff0f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d0c99ddd028f0bc3b1d64924ff0f61.png)
①“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2210f152080d9a68a97c805f5c1cde96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc1a317e2e6f1caf1e67bf4073cf789.png)
②“对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e702d87b7d70bf870bc04ef6df889d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
A.①真命题;②假命题 | B.①假命题;②真命题 |
C.①真命题;②真命题 | D.①假命题;②假命题 |
您最近一年使用:0次
2023-12-12更新
|
765次组卷
|
7卷引用:广东省广州市第二中学2023-2024学年高二下学期期中考试数学试题
广东省广州市第二中学2023-2024学年高二下学期期中考试数学试题上海市闵行区2024届高三上学期学业质量调研(一模)数学试卷江西省上饶市广丰一中2024届高三上学期12月月考数学试题湖南省衡阳市第八中学2024届高三上学期第五次月考数学试题(已下线)专题09 导数(三大类型题)15区新题速递(已下线)专题01 集合(15区真题速递)(已下线)上海市高二下学期期末真题必刷03(常考题)--高二期末考点大串讲(沪教版2020选修)
4 . 在整数集
中,被5除所得余数为
的所有整数组成一个“类”,记为
,即
,
给出如下四个结论:正确结论的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0ecd416d6dc3d886b7bf73fc285dde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e854be8d44d7021f8060aebf252284a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a96691f19673c97ba9f6e432a7539f37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63702e21678ae8a609cfa1faeef69fa6.png)
A.![]() |
B.![]() |
C.![]() |
D.“整数![]() ![]() |
您最近一年使用:0次
名校
解题方法
5 . 命题
:
,
.若
为真命题,则实数
的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e403540b7a628d6e662b81e1f66d22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd994864797ddf3c0c87869c93d674a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-11-17更新
|
294次组卷
|
2卷引用:广东省深圳市蛇口育才教育集团育才中学2023-2024学年高一上学期阶段检测(二)数学试题
解题方法
6 . 设命题
:实数
满足
,其中
;命题
:实数
满足
.
(1)若
,且命题
和
都是真命题,求实数
的取值范围;
(2)若
是
成立的必要不充分条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebff6619f0334a3494d94c6cacf2f2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca870ce2c2d48a19bd4c0a0da0b57b00.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
7 . 下列命题中是真命题的有______ .
①若
,则
;
②若
,
,则
;
③
的解集为
;
④设
,
,且
,则
.
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c22b9d08cf536bbb76bce1b0f135772.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44cbc322861846709c08c7f1da746848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/125415eb6733489cdc96ee48eb88aee7.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634d7e7e68878a555f6330b18c002a44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241164222e43c45fd5f34e6daa66e092.png)
④设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2128a00f52af4427721f0ebba591daa.png)
您最近一年使用:0次
8 . 甲、乙、丙、丁四人参加数学竞赛,四人在成绩公布前作出如下预测:
甲预测说:我不会获奖,丙获奖;
乙预测说:甲和丁中有一人获奖;
丙预测说:甲的猜测是对的;
丁预测说:获奖者在甲、乙、丙三人中.
成绩公布后表明,四人的预测中有两人的预测与结果相符,另外两人的预测与结果不符;已知有两人获奖,则获奖者可能是( ).
甲预测说:我不会获奖,丙获奖;
乙预测说:甲和丁中有一人获奖;
丙预测说:甲的猜测是对的;
丁预测说:获奖者在甲、乙、丙三人中.
成绩公布后表明,四人的预测中有两人的预测与结果相符,另外两人的预测与结果不符;已知有两人获奖,则获奖者可能是( ).
A.甲和丁 | B.乙和丙 |
C.甲和丙 | D.乙和丁 |
您最近一年使用:0次
9 . 下列命题中,不正确的有( )
A.对角线垂直的四边形是菱形 |
B.若![]() ![]() |
C.若两个三角形相似,则它们的面积之比等于周长之比 |
D.若![]() ![]() |
您最近一年使用:0次
2023-10-26更新
|
210次组卷
|
2卷引用:广东省深圳市名校2023-2024学年高一上学期期中联考数学试题
名校
10 . 已知命题
:方程
有两个不等的负实根;命题
:方程
无实根.
(1)若命题
为真,求实数
的取值范围;
(2)若命题
,
中有且仅有一个为真一个为假,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36bcb4df710cf7fc5a4159380ae5451e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a61cf3419d89ff7fab7db8f49428b4c4.png)
(1)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次