名校
解题方法
1 . 有下列命题:
①不等式
的解集为
;
②对于实数
,
,
,若
,则
;
③对于实数
,
,
,若
,则
;
④若
,函数
的最小值是
;
⑤当
时,不等式
恒成立,则
的取值范围
;
其中真命题的序号为__ .
(把所有正确答案的序号填写在横线上)
①不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d5d21732d8a22de752d615b46867f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee57417245352ff37564703524651589.png)
②对于实数
![](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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c22b9d08cf536bbb76bce1b0f135772.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
③对于实数
![](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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5842f47b99932df68efbb64eb847e956.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411100df59e7a9dc8d4ad77d497b6fa9.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/647e17f9be50dcaba45fa6b15d5d982a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
⑤当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e38f9e9352a21f83b2c1e8f15f95593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed1a65d88f9823d49da8f3b96ea9ec6f.png)
其中真命题的序号为
(把所有正确答案的序号填写在横线上)
您最近一年使用:0次
名校
解题方法
2 . 已知集合
,
.
(1)若
,求
,
;
(2)若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae282f8773509164cca69ab7ee813ffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ecfb05896f6f977e85567b1633d0d1f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81919684bc4047d376c7e57dc6c8f1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a383c6f21d52e8632095b326b46129.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eac19737d882225c903054eb4863501.png)
您最近一年使用:0次
2023-09-29更新
|
186次组卷
|
3卷引用:福建省福州市永泰县第二中学2022-2023学年高一上学期期中考试数学试题
福建省福州市永泰县第二中学2022-2023学年高一上学期期中考试数学试题(已下线)模块四 专题4 大题分类练 《集合与常用逻辑用语》基础夯实练天津市双菱中学2023-2024学年高一上学期11月期中数学试题
3 . 不等式
的解集是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4837a2c620ec86af364eeaa20f4f3a7f.png)
您最近一年使用:0次
2023-09-27更新
|
430次组卷
|
2卷引用:广东省深圳市6校联盟2022-2023学年高一上学期期中数学试题
名校
解题方法
4 . 设集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b55eb872c0537bf142c0ac4dace17ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70a1027f68faabaf56c9db4f9d4d166a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
解题方法
5 . 已知集合
,集合
,若
,
,则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41eb113f5bed2aafb70304b5d62aba92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e887db8ee0b0f431d65dafc2ccb7c91f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd10968900343aaaa158451018166fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.0 | C.1 | D.2 |
您最近一年使用:0次
6 . 不等式
的解集是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95f7ed2523bb4ab7c2a69569e5e5b3dc.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
名校
7 . 已知集合
.
(1)若
,
,求实数
的取值范围;
(2)设集合
且
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f405da630670ed851d0ea5d86701d3f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35a2410ce34b36954ed4923e600d42f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e79b08dac412cde3886ba079ad62a45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e2c5d126622e6b788a41e6300b2f6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a8216a51e8f3648a62ba28d7ae72702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
您最近一年使用:0次
名校
解题方法
8 . 设
,当
时,
恒成立,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ff126868ee784e319db1513033b21bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/082352b67d6d25e12ac9afe70212d27d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
9 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ab3f2f03289e37263c522a7a41b73d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
10 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5ae83fda89e040eb1da7ef3d1b10503.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe6901d1321fff4fcb80917ea4cb849f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次