名校
1 . 若不等式
的一个充分条件为
,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc6ad37278f2797746c938f501b62c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e482dd69ac1cf7f06552fdf25a217c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 已知函数
,
.
(1)若关于
的不等式
的解集为
,求实数
的取值范围;
(2)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c002fa2cc3934d359f2e88e6b10f856c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e5ff2705eb737adef9a6dc70559d79.png)
(1)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f5883464dc06c76ed66ecaba1026d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a01d42aa6df5d1faf5b9699fb7462042.png)
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解题方法
3 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1e302aa37234af5e5ae733baf49e8ff.png)
(1)当
时,求
的解集;
(2)函数
在区间[1,3]有单调性,求实数a的取值范围;.
(3)求函数
在区间[1,3]上的最小值h(a).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1e302aa37234af5e5ae733baf49e8ff.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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2022-11-14更新
|
234次组卷
|
2卷引用:江苏省淮安市清河中学2022-2023学年高一上学期第二次阶段测试数学试题
4 . 设集合
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7856983c52d18ad6c38c21fb6b89914.png)
(1)求
;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c53103c0f5f3f9bb4e9f93fc285c664.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7856983c52d18ad6c38c21fb6b89914.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81919684bc4047d376c7e57dc6c8f1c.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abfba97ad3d1170b3b7ea70c588a2162.png)
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5 . 已知关于
的不等式
.
(1)若该不等式的解集为
,求
的值;
(2)若
,求此不等式的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f26f48a4a5a6cdfacfcf93c71dcc6525.png)
(1)若该不等式的解集为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0b07edb385c2a38952d39f7137a3685.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef3e8a28bd46c493e4adb95194f43532.png)
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6 . 设
,则“
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e18628cb329d3816e8623ee50963ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a551a88ac426439803f564a3bbee04a.png)
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 |
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2022-11-01更新
|
454次组卷
|
4卷引用:江苏省淮安市高中校协作体2022-2023学年高一上学期期中数学试题
名校
解题方法
7 . 已知关于
的不等式
对
恒成立,则实数
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f125d0fbc08ce6047d7f2420eeb9277b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29aef458f2367b76432719f6f56275d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2022-11-01更新
|
526次组卷
|
3卷引用:江苏省淮安市高中校协作体2022-2023学年高一上学期期中数学试题
名校
解题方法
8 . 已知
,
.
(1)是否存在实数
,使
是
的充要条件?若存在,求出
的取值范围,若不存在,请说明理由;
(2)是否存在实数
,使
是
的必要条件?若存在,求出
的取值范围,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6089d3ee344c5a1d60f13d79071f187.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0ae5e9528be43a8f991aa2d89b16bc6.png)
(1)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320a7c616f6f7207a0a38bb707ac2205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8647b00cc8c8f35555c7d78cf2812c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320a7c616f6f7207a0a38bb707ac2205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8647b00cc8c8f35555c7d78cf2812c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2022-11-01更新
|
227次组卷
|
4卷引用:江苏省淮安市高中校协作体2022-2023学年高一上学期期中数学试题
江苏省淮安市高中校协作体2022-2023学年高一上学期期中数学试题河南省漯河市第四高级中学2022-2023学年高一上学期期末数学试题(已下线)模块二 专题1《集合与常用逻辑用语》单元检测篇 B基础卷 (人教A)(已下线)期中真题必刷基础60题(45个考点专练)-【满分全攻略】(人教A版2019必修第一册)
9 . 已知一元二次不等式
的解集为
或
,关于
的不等式
的解集为
(其中
)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fbe506693bc468548439637ef44bdd0.png)
(1)求集合
;
(2)是否存在实数
,使得
.若问题中的实数
存在,求
的取值范围;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1e167e89dbf138d0668bcfc8d5f9b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd574806ca168fedc6fb20db0a7e05e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1a4115153cc6b2e7721764a04661d82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a8f8135ade4629e7f48d87a7adc087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b6a5b26336eff06ce06c4e44a376687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fbe506693bc468548439637ef44bdd0.png)
(1)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
(2)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab4717e4827480f0f6f4ded85e52eab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4158b45eb02a7765e069e58eacaa576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab4717e4827480f0f6f4ded85e52eab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab4717e4827480f0f6f4ded85e52eab.png)
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解题方法
10 . 设集合
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a939fe3847936589ae47df593159631.png)
(1)求
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcb172ae9253c2be3146ea6d56e700c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a939fe3847936589ae47df593159631.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9795cfcb301e51b2f628ff95d7c85c4.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83fe92299d8bd4da70692707ac9da5ec.png)
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