1 . 已知
,
,若
时,关于
的不等式
恒成立,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19339e3904e9541ff26b30ae5f1242b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2411363e5d39b9a2c32e8ecb081c3b2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15822e34da7a0504da880ecf0dce5de8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
2 . 已知集合
,
,其中
.
(1)当
时,求
;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9613151c931d11bbbc00d3227b1d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad8f32007a7e2c341fef7cba7023767.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf039c46a25e331446c6ee1e9af3c82.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cbeede118c407a800b05757b9a1393e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
名校
3 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c68f4ed59f61d4906f14fd13fdfed7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f415fb91eabbe87c0dbf4a1d6421ba61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-10-08更新
|
623次组卷
|
3卷引用:江苏省常州市第一中学2023-2024学年高二上学期期初数学试题
名校
4 . 已知函数
的定义域构成集合
.不等式
的解集为
.
(1)
时,求
的取值范围;
(2)
时,若
是
的充分条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a7571b51c4aff6f10a67f00f53175f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/073c14e288aebbf98902fe50dc072f8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efbb66d7145f604e253fe20b67f386c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
5 . 解下列关于x的不等式.
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9828274fa9e56707227af7d26997b217.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9828274fa9e56707227af7d26997b217.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb5b41161c7c697e3f2406ee7cd18159.png)
您最近一年使用:0次
名校
解题方法
6 . 若“
,
恒成立”是真命题,则实数m的最大值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24eb36914c5d05da7d3e23900f0b4124.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e4895393ef0cb9627ef0f1e4fe3ad30.png)
您最近一年使用:0次
2023-09-26更新
|
369次组卷
|
3卷引用:江苏省南京师范大学灌云附属中学2023-2024学年高一上学期期初摸底考试数学试题
名校
7 . 已知一元二次不等式
的解集为
,则
的解集为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb56d9418f1a3cb2baa6b0c862010ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c7b74fd862d7e3f35e40ae1f626c4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76cfa7e2d6f88ccdc6dd5e19c9491c00.png)
您最近一年使用:0次
2023-09-26更新
|
451次组卷
|
5卷引用:江苏省南京师范大学灌云附属中学2023-2024学年高一上学期期初摸底考试数学试题
解题方法
8 . 设函数
,若对于任意的
,
恒成立( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c320c1a1eae939018226067144497b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee41b9d825819834e804a55c56381eb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2787a524314830b20c8404f973be41e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
9 . 已知集合
,
,
,全集为实数集
.
(1)求
,
;
(2)如果
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea543ed291c5f4865ec55010c0250a22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d870a4ba42506f0e2bd6c16a9013e023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3921ed4424f9495a62e1ca2b4f620f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94b0cbfbb7f9547c3bdcc8356d456935.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c29cd450d0feaea9acb27a60430f4a3c.png)
您最近一年使用:0次
10 . 解关于x的不等式:
(其中
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71e2fda5a2615a5365973a38f5366ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb5f421939ee855f25927e7570d82c71.png)
您最近一年使用:0次