解题方法
1 . 已知定义在
上的奇函数
在区间
上是严格减函数.若对于任意的
,总有
成立,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe86cace140f2c3588ab115837bbfc9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/749caad98740c97935998ea88057136d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
2 . 已知命题
,
若命题
为假命题,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a048faf9a173984b013d7dec94703ea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d14a0e98ba744fe7d30816ecc97a507e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-01-24更新
|
654次组卷
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2卷引用:山东省菏泽市第一中学2023-2024学年高一上学期第四次月考数学试题
名校
解题方法
3 . 若关于
的不等式
的解集为
,则实数
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a83b772fa451462a580bdf7a81ffcb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac87434324956e4145e38ad92a1aa95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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7日内更新
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2卷引用:安徽省亳州市利辛高级中学2023-2024学年高一上学期期末教学质量检测数学试题
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4 . 下列命题中正确的是( )
A.若已知集合![]() ![]() ![]() ![]() ![]() |
B.函数![]() ![]() |
C.已知不等式![]() ![]() ![]() ![]() ![]() ![]() |
D.命题![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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5 . 已知集合
,集合
.
(1)存在
,使
,
成立,求实数
的值及集合
;
(2)命题
,有
,命题
,使得
成立.若命题
为假命题,
为真命题,求实数
的取值范围;
(3)若任意的
,都有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f300113438dd4fcc6c482c63fe4516.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b07d783b52a7aa14959fefff1f6f9c82.png)
(1)存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070054c0b4182ab7399ed56925844e93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c8c5147899c7281b0233a2ca02e0847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d32376822d0f20d9b264afc917b25a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7467b38962b39334863cb401ce899a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d75484dadcfd90b77556179228d94770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaa0583842bff0b9ac0a539656f88099.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9e7c815cc3e20c815f4e0596ba13d54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e26b38e357c7d985656ba7bb3c794a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9aa6ecf57fba086c6016f5e9452c831.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
6 . 设
.
(1)若不等式
对一切实数x恒成立,求实数m的取值范围;
(2)在(1)的条件下,求
的最小值;
(3)解关于x的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab21274f0a4c68000ffd70abbc0b64d.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e59bb4bf2e0698d876cf815362b3658.png)
(2)在(1)的条件下,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9aaa48c24bcd35f215d27adcb5d00f1.png)
(3)解关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c0243e9dd6621e4d7c2eccc1bc3caf6.png)
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2024-04-23更新
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973次组卷
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2卷引用:广东省河源市河源中学2023-2024学年高一上学期第一次段考数学试题
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解题方法
7 . (1)当
取什么值时,不等式
对一切实数
都成立?
(2)若实数
,
,
满足
,则称
比
远离
.对任意两个不相等的实数
,
,证明
比
远离
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6d03dfc5b4ce38e17403b3b49fdc15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若实数
![](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/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17d41b744a89e1a50c96ca75bf090830.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/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17b0bcc077bc78b7aae05b0c9dff42b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3f034eb004e6db6c58a3bcd7d18cfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
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解题方法
8 . 已知函数
的定义域为
,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db4d4c41456b1fa93b7f33137bd8a0cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2023-11-05更新
|
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2卷引用:上海市洋泾中学2023-2024学年高一上学期12月月考数学试题
解题方法
9 . 解决下列问题.
(1)已知关于
的不等式
的解集为
,求实数
的值;
(2)若关于
的不等式
恒成立,求实数
的取值范围.
(1)已知关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6d03dfc5b4ce38e17403b3b49fdc15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598a7d8ab9c8826b16945caba9f8eaa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92bb69bda90df3963887f8958e911ded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
10 . 若
是假命题,则实数
的取值范围为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b3e7b30eb82cb815e05720268f7d5bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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