名校
1 . 已知函数
,
,当
时,恒有
;
(1)求
的表达式;
(2)设不等式
,
的解集为
,且
,求实数
的取值范围;
(3)若方程
的解集为
,求实数
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a6dd87388af5751b11a8bf718869cbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3471484b64504fc545398f52be830010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706391d44663417b5679a72f5a55cd6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa4414b47c0bbbb6e1bc1a91e07dc1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cea72e0c37257bcfd85a59ef8dd0f80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3de71bc150fba649c5241d982ecb258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b97b4c4aa110a1cf5842d0ce1de48f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
2 . 已知函数
.
(1)若
是不等式
的解集的子集,求实数
的取值范围;
(2)当
时,存在实数
,使得不等式
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fac7980a2eef143eb6a431ab5495707.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/499a8449e8bb253065463c23f3ff5860.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0a9f7884d2a1a1f304d8d468d8dd47c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/629d6ce15f315df812a6d75d18cf9c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-03-15更新
|
277次组卷
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2卷引用:2019届贵州省贵阳市普通高中高三年级上学期摸底理科数学试题
9-10高二下·辽宁大连·期末
名校
3 . 设关于x的不等式
的解集为A,不等式
的解集为B.
(1)求集合A,B;
(2)若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19d57674f36bf5c1f8098d80be12a310.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eedf8e27f42f6bb0d696fb95fc8a446.png)
(1)求集合A,B;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
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2020-01-04更新
|
572次组卷
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4卷引用:辽宁省大连市长海高中09-10学年高二下学期期末考试数学试题文科
(已下线)辽宁省大连市长海高中09-10学年高二下学期期末考试数学试题文科辽宁省盘锦市辽河油田第二高级中学2019-2020学年高一上学期期中数学试题北京市首师大附中2019-2020学年高一上学期期中数学试题(B)北京市首都师范大学附属中学2019-2020学年第一学期期中考试高一(5-11班)数学试题
名校
4 . 不等式
的解集为A,集合
,若
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c01c1b65bd70bc47b3a7adfa576a0d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0579135823e3b67adf95c22f57aa3e1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
5 . 不等式
和
的解集分别为
和
,且
,则实数
取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7ec250964c06c999cbd4c689dd654fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f267da0b01cfb5dca18cbf605bc610cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.(0,1) | B.[0,1] | C.[-1,1] | D.(-1,1) |
您最近一年使用:0次
2019-12-28更新
|
195次组卷
|
2卷引用:河北省石家庄市辛集中学2019-2020学年高一上学期第一次月考数学试题
名校
解题方法
6 . 已知不等式组
,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/8aa25c1088863a7339c8a8aaf71c9b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccf0f1d912e597c4f564cd503f585b6c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95321d0e551daa25104d32157249c23d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ceb1f338fa60976229d7ec6531b626.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
7 . 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
8 . 记关于x的不等式
的解集为P,不等式
的解集为Q;
(1)若
,求P;
(2)若
,求实数
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7658d05d17b00387b7b16b40b186967c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99fce08ef1e44c1d32228f064947ba1a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1baa634adb05b27164ef44a272cda31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
9 . 已知二次函数
的定义域为
恰是不等式
的解集,其值域为
,函数
的定义域为
,值域为
.
(1)求函数
定义域为
和值域
;
(2)是否存在负实数
,使得
成立?若存在,求负实数
的取值范围;若不存在,请说明理由;
(3)若函数
在定义域
上单调递减,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc1d4dfe9b98c934cb60526c8e36074.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b98d1a5f29c0ef6d735ab302ad592617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2966faea2bdf17a1c9312873cfda0fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304226ca50149b49702928e44d565964.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)是否存在负实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2966faea2bdf17a1c9312873cfda0fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304226ca50149b49702928e44d565964.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
名校
10 . 已知二次函数
的定义域
恰是不等式
的解集,其值域为
,函数
的定义域为
,值域为
.
(1)求
定义域
和值域
;
(2)试用单调性的定义法解决问题:若存在实数
,使得函数
在
上单调递减,
上单调递增,求实数
的取值范围并用
表示
;
(3)是否存在实数
,使
成立?若存在,求实数
的取值范围,若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc1d4dfe9b98c934cb60526c8e36074.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaeb4dd94c30a0599a8ae132976af64d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2966faea2bdf17a1c9312873cfda0fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304226ca50149b49702928e44d565964.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)试用单调性的定义法解决问题:若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f56988dfa7e8a5ee6d943dc9c9d93006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2966faea2bdf17a1c9312873cfda0fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf93b65e769d840720e01769685740a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/660c5ba1a2501c7e16b5357e1e850400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
(3)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](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
2019-12-04更新
|
485次组卷
|
3卷引用:上海市七宝中学2018-2019学年高三上学期第一次月考(10月份)数学试题