1 . 已知全集
,集
,
.
(1)若
,求实数
的取值范围;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf7fb36797571198d877c28edec3d177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09fe576165b13409595187445a2d464f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e350088f6381527435410ceb47575097.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
2 . 设
,集合
关于
的方程
无实根
.
(1)若
,求
;
(2)若“
”是“
”的充分条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36b234ba460321e811de1729eadd4b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/319e124ae1c208f7ae0c22d86aee3965.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afaed5ecc34e15984541c307d9d828b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38baccce2f900ba3a64bfde0e2f68ef6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce9877c448965ecfb90d46c988bc6058.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b898432f74ef221028e94ede5268709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
3 . 已知函数
,
.
(1)求
的最大值;
(2)若对任意
,
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3c95fa881ab6761e0da3a5f1d50f70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c5f3a56cf4ffdc7740752c85aa6e898.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecea86a48d471af5a152340b43c9da5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1bf60c5e8996d138198fe74f30ce520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4985e9c782063e89a206196f9354ddee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2024-01-06更新
|
325次组卷
|
3卷引用:江苏省南通市如皋市2023-2024学年高一上学期期中教学质量调研数学试题
4 . 解下列不等式并将结果写成集合的形式:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e011b337fdb8459ca5006b772136c039.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65799fb8b64223705661942b9b1c8871.png)
您最近一年使用:0次
名校
5 . 已知关于
的不等式
的解集为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c64aadb3f6c4fd734de4a50ec93347d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed9c9c92bac35c5fc4e5b95786cc698f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
您最近一年使用:0次
2023-11-26更新
|
225次组卷
|
2卷引用:江苏省南通中学2023-2024学年高一上学期12月阶段考试数学试题
名校
解题方法
6 . 已知
,
.则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/830a496fa094d44d2169fe61bce049b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acb49b59a0a8facb3300e2bf11514374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 已知不等式
的解集为
.
(1)求
的值;
(2)当
时,解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/009081a2b9070d4a1f33572709723a61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25920b88c13c97743a19de2fdd1def80.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f4c78214e43a8b93f2a57072033cbcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb8779ba019e62b771dbe015d1e56292.png)
您最近一年使用:0次
名校
8 . 解不等式:
(1)
;
(2)若
,解关于x的不等式
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e25fd39db86c3a98684c2d36aff566c7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1069475ff1f5d28f9d42ec49de33416f.png)
您最近一年使用:0次
2023-11-15更新
|
582次组卷
|
3卷引用:江苏省南通市海安市实验中学2023-2024学年高一上学期期中数学试题
解题方法
9 . 下列说法正确的是( )
A.![]() ![]() |
B.若集合![]() ![]() |
C.若命题“![]() ![]() ![]() ![]() |
D.已知集合![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-11-13更新
|
169次组卷
|
2卷引用:江苏省南通市启东市东南中学2023-2024学年高一上学期期中数学试题
名校
10 . 已知不等式
的解集为
或
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa504a3525899b292b2b53aae50fcbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a862c5429833e0c4a865639289b5d3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b18d49782c83ea51587859d3c2bc216d.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() ![]() |
您最近一年使用:0次
2023-11-12更新
|
500次组卷
|
7卷引用:江苏省南通市海安市实验中学2023-2024学年高一上学期期中数学试题