1 . 已知
:
在
上恒成立;
:存在
使得
;
:存在
,使得
.
(1)若
且
是真命题,求实数
的范围;
(2)若
或
是真命题,
且
是假命题,求实数
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55762dbc5015e3c5f7cfd894c6dea023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bb6fe3e5749fd6a01dd4380866a53bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f07ad90ca228230b03f12eb48ee0c1d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41cea7b72d22d84921091a70ac95f4b.png)
(1)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)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
2 . 命题
:关于
的方程
有两个相异负根.命题
:关于
的不等式
对
恒成立.
(1)若命题
为真命题,求实数
的取值范围;
(2)若这两个命题中,有且仅有一个是真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a58335363394b50521776f552dde43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/021ca269688277983b314a75bb8f0417.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
(1)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若这两个命题中,有且仅有一个是真命题,求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2022-12-23更新
|
658次组卷
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3卷引用:浙江省绍兴市2022-2023学年高一上学期期末模拟数学试题
名校
3 . 已知命题
关于
的方程
有实根,若
为真命题的充分不必要条件为
,则
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/863479c20d1f57c86f9f4dc37264dc1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c91ef053a943ad511da89ebb0288d800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1af1012edc102c3a0e5ebeee99175be6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94fbea157988c945f9d0b96642d7a38c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab4717e4827480f0f6f4ded85e52eab.png)
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2022-10-17更新
|
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6卷引用:浙江省衢州市乐成寄宿中学2022-2023学年高一上学期期中数学试题
浙江省衢州市乐成寄宿中学2022-2023学年高一上学期期中数学试题河北省石家庄市第二中学2022-2023学年高一上学期适应性考试数学试题安徽省滁州市定远中学2021-2022学年高一上学期10月检测数学试题(已下线)1.4.1充分条件与必要条件(分层作业)-【上好课】(已下线)1.2.3 充分条件、必要条件(第2课时)-高一数学同步精品课堂(人教B版2019必修第一册)(已下线)专题2.2 充分条件、必要条件、充要条件(2)-【帮课堂】苏教版2019必修第一册
解题方法
4 . 已知集合
,非空集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77c47adba5ba8dc02ede0640f40d56bd.png)
(1)命题
:
,命题
:
,若
是
的必要条件,求实数
的取值范围.
(2)存在命题S:
为真命题,求实数
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b82b57e9656e628ccea85fde2982340a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77c47adba5ba8dc02ede0640f40d56bd.png)
(1)命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.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)
(2)存在命题S:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c088bf17800cd47dd1b4d460a1a12ab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
5 . 给定下列四个命题:其中为假命题的有___________ .(填上假命题的序号)
(1)
,记
,则
;
(2)如果函数
为偶函数,那么一定有
;
(3)函数
的最大值为
;
(4)命题
的否定为
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b935e1f19a703fac1cc0ea7278d77b33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/989215002451088c5f5fdb81bd400da7.png)
(2)如果函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa6ee19717655990e412e3c7ce726b9.png)
(3)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4602375f0b60ef62d5aa5a3216c5edd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd422e76d464f861b4bd22ab96bfad2f.png)
(4)命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c6f3e28e75b451e9182d2a96738ee9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/965bc27ac744c29650fc7c8c9a71ed0c.png)
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2021-08-25更新
|
293次组卷
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2卷引用:浙江省杭州之江高级中学2020-2021学年高一上学期期中数学试题
6 . 命题
有实数根,若
是假命题,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e1486ebb2647736389885dd52da7bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-10-28更新
|
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5卷引用:浙江省台州市实验中学2020-2021学年高一上学期第一次月考数学试题
浙江省台州市实验中学2020-2021学年高一上学期第一次月考数学试题(已下线)专题2.3 全称量词命题与存在量词命题-重难点题型精讲-2021-2022学年高一数学举一反三系列(苏教版2019必修第一册)(已下线)专题1.7 命题与量词+全称量词与存在量词的否定-重难点题型精讲-2021-2022学年高一数学举一反三系列(人教B版2019必修第一册)(已下线)第二章 常用逻辑用语(单元重点综合测试)-速记·巧练(苏教版2019必修第一册)山东省济南市历城第一中学2023-2024学年高一上学期11月期中数学试题
20-21高一上·浙江·阶段练习
7 . 已知命题
;命题
.若命题p和q有一个为真命题,
为真命题,则实数m的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/023ae9afbf6cb69f3a605048622a087f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96ce918f8fe4057b2795cb22a0233882.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
您最近一年使用:0次
名校
8 . 已知命题
,且
,命题
,
恒成立,若命题
为真命题则
的取值范围是:____ ,
为假命题,则
的取值范围是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f1ab002d55d83c2c3f0f88c34aced1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e67e2f06de3e729ae5d86c2ed2d74e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72a6fc004861e4a5780736acea3a9e10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f754145f648450f9e14cec4b17140a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-05-01更新
|
408次组卷
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2卷引用:浙江省宁波市北仑中学2019-2020学年高一(1班)下学期期中数学试题