1 . 已知关于
的不等式
的解集为
.
(1)当
时,求集合
;
(2)当
且
时,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce65182cad1364b798d964ab68b51912.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fefe237385a2dc1b005d8dc61ef56eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1a7a50991accfdeed8792884bde953.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2020-03-15更新
|
714次组卷
|
4卷引用:课时01 集合及其表示法-2022年高考数学一轮复习小题多维练(上海专用)
(已下线)课时01 集合及其表示法-2022年高考数学一轮复习小题多维练(上海专用)2020届海南省全国大联考高三第三次联考数学试题2020届全国大联考高三第三次联考数学试题河南省信阳市2020-2021学年第一学期高二期中教学质量检测数学(文科)试题
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2 . 记关于
的不等式
的解集为
,不等式
的解集为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(1)若
,求
;
(2)若
,求正数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b1fa84385e87a5cf9d925103bc98d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c111a03a88d0635659cc3fb347c09d2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1baa634adb05b27164ef44a272cda31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
3 . 关于
的不等式
,
的解集分别为
和![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(1)试求
和
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b71ceb9fa4e24f01c82e23408dba6e42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0e756543c3183d97aa5f848b54fcb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(1)试求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4815b1d16a7ae485ff0bba0b397e893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
4 . 若关于
的不等式
的解集为
,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/78b8e93806649105c50de24378b4ca3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-02-11更新
|
285次组卷
|
2卷引用:上海市曹杨二中2015-2016学年高一上学期期中数学试题
名校
5 . 已知关于
的不等式
(
为实数)的解集为
,集合
.
(1)若
,求
的取值范围;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe167614259ff3ac4ddd06853531a0b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd06d8fb2da66ca2f4f68b64d93bf3bb.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843c3f388a75bf981c11ca947a86e5fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
6 . 已知
,不等式
的解集为
,不等式
的解集为A,
(1)求实数k的值;
(2)设集合
,若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34b3924ecd40ce359494f90c28039cf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa175c2e4b215a1adc68377a0827d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d82ec141c8e84ac00891f48577052e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2277165e6d492ae07c2ad9eba2fceabc.png)
(1)求实数k的值;
(2)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f478948da1e3ebe0efd9e18ee53aa9d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1ba0a1129741502600e47bf058c98.png)
您最近一年使用:0次
2020-02-12更新
|
177次组卷
|
2卷引用:上海市杨浦区2016-2017学年高一上学期期中数学试题
名校
7 . 在下列命题中,正确的命题有________ (填写正确的序号)
①若
,则
的最小值是6;
②如果不等式
的解集是
,那么
恒成立;
③设x,
,且
,则
的最小值是
;
④对于任意
,
恒成立,则t的取值范围是
;
⑤“
”是“复数
(
)是纯虚数”的必要非充分条件;
⑥若
,
,
,则必有
;
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef389807e5cb964f7756c6841f7161d.png)
②如果不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae8fff7c98b78992edcd61daf6ea72f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef7b2668d8fcf713370822c8e368ba7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4da693578d4cd0c841fd529fe7ebfe4d.png)
③设x,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2519954ec2deabecd7e057886fa4023c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5558c083d34cbb0a58d3ce1dc6f5778e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa8887f77124cbe18a4931826ede9c9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
④对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b687f97094676b2755bc724219a58520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ce220e0583c843810d4b44de111156.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f49bc53d70ee599df5cad39f06f728c2.png)
⑤“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21d96d22950baabd8ca6647205f1d3cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
⑥若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae2e606c883dace7fbd88223c8067885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9d3040a7a1fc2cf8ac555dbafc97dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc277eef249facf647e13a58e3c2fe26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/297a7062ba8f240d7517f0dd3ee6a27d.png)
您最近一年使用:0次
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8 . 关于
的不等式
的解集为
,则实数
的取值范围________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/561a17e46e4dac407e1c7601d4ec9587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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18-19高二·全国·假期作业
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9 . 若
,不等式
的解集为
,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1485a4756c56f1126b9825d5019d544c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de9edfac2ae030e9a65231fe41e1e7fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-02-03更新
|
1311次组卷
|
7卷引用:沪教版(上海) 高一第一学期 新高考辅导与训练 第2章 不等式 本章复习题
沪教版(上海) 高一第一学期 新高考辅导与训练 第2章 不等式 本章复习题(已下线)步步高高二数学寒假作业:作业8一元二次不等式及其解法人教A版(2019) 必修第一册 过关斩将 第二章 2.2~2.3综合拔高练核心素养练考点20 不等式-2020年【衔接教材·暑假作业】新高三一轮复习数学(文)(人教版)(已下线)第1章+章末复习课(重点练)-2020-2021学年高二数学(文)十分钟同步课堂专练(人教A版选修1-1)(已下线)第1章+章末复习课(重点练)-2020-2021学年高二数学(理)十分钟同步课堂专练(人教A版选修2-1)广东省实验中学珠海金湾学校2020-2021学年高二上学期9月月考数学试题
名校
10 . 定义区间(m,n),
,
,
的长度均为
,其中
.
(1)若关于x的不等式
的解集构成的区间的长度为
,求实数a的值;
(2)求关于x的不等式
的解集构成的区间的长度的取值范围;
(3)已知关于x的不等式组
的解集构成的各区间长度和为5,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de20c8a7425e383e93647b7d491e7745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ac9ef8ea6957a8dd091d6cda0eb36f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7891bf37640188872bf53ba3bc95388f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64da75a02173c2a5eb40f4c68d0f4f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fe3553f2b07ae93c122a3c529111211.png)
(1)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62121642e1f68dbf05b38369507fcb51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
(2)求关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e18b778ad3075ed3cb13ffc7c894066.png)
(3)已知关于x的不等式组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48582f006cfc7a2366d1e80f8ae5a526.png)
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