名校
1 . 已知命题:“
,不等式
”是真命题.
(1)求实数
的取值集合
;
(2)设不等式
的解集为
,若
是
的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81199c5df930d4a85550c4e20c266b17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d03796ad94613a24f2634722dd9603b.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)设不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29d1a94d97a29ca37623e732228c785b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2021-01-02更新
|
175次组卷
|
4卷引用:山西省运城市高中联合体2020-2021学年高二上学期12月调研测试数学(文)试题
名校
解题方法
2 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)设
,若关于
的不等式
的解集为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46122fbbff49012dfc5988613ce96cd6.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4824c80b056e37dcae5eb442648b40e.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa4881d3f42adf19894dc0bda08f890.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-07-14更新
|
325次组卷
|
6卷引用:四川省射洪中学校2020-2021学年高三上学期第二次月考数学(文)试题
解题方法
3 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)若不等式
的解集非空,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b42d28d512cc7e8362d020b45be6d186.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74dbd58b21a94cf93f4623c07452b102.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34bee828c53d52c69a8a616d94e6c93d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-12-27更新
|
112次组卷
|
2卷引用:四川省乐山市2020-2021学年高三上学期第一次调查研究考试理科数学试试题
名校
解题方法
4 . 已知函数
.
(1)不等式
的解集
,求
.
(2)若关于
的方程
有实数根,求实数
的的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fda0d031ecb738163d37d488906f87.png)
(1)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e2405c4822bceae1cf191edb502d3b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3fed7c2ccdc6aa2a6a86d7852088d1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2020-10-24更新
|
339次组卷
|
8卷引用:广西桂林市第十八中学2021届高三上学期第二次月考数学(文)试题
名校
解题方法
5 . 已知函数
,其中
.
(1)若
,求不等式
的解集;
(2)若存在
,使得
成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/779dc02579f5b1c30c6f255760171cb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab989f85a681b41c29465d4be74b789f.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e78792bc2cc2b21e842c76cbcfafc364.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-12-21更新
|
110次组卷
|
3卷引用:四川省南充市2020-2021学年高三上学期第一次高考适应性考试文科数学试题
解题方法
6 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)设关于
的不等式
的解集为
,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81d8211c2de6b7b88239f59ad500d48.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4509817be39bef4bcde115996ee39e8.png)
(2)设关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51efe0850d0c9e7943cfcc6e1a587b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f57a211ebd5a982fea7d9bfb7eaffb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-10-16更新
|
56次组卷
|
2卷引用:四川省宜宾市叙州区第二中学校2020-2021学年高三上学期第一次月考数学(理)试题
名校
解题方法
7 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)若对于任意实数x,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32a5b4137d46eb8a4f1bb972eea21f57.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843a351db264389436470cb255904151.png)
(2)若对于任意实数x,不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fb9662ca60bab20c73829b3687a583c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-10-16更新
|
158次组卷
|
8卷引用:四川省遂宁市射洪县射洪中学2020届高三上学期10月月考数学(文)试题
名校
8 . 已知函数
,
.
(1)若关于
的不等式
的解集为
,当
时,求
的最小值;
(2)若对任意的
、
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d24e6f8e305a724983d445bba6500c2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27900f19a34dc16eee86d4a1cf129f03.png)
(1)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87dc80d6f3233d41673dfabae676eb22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4afff014afabf877171cb12440268c56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd9dfab7596f32cca3a449c79cf5a760.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a99f5dd1bba94c164fb01e0df7c86e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d212eec5b5d0cdcbe7b16f933a660141.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8c626afbc95213849e8f122d9b1a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-11-30更新
|
452次组卷
|
8卷引用:四川省仁寿第一中学校南校区2020-2021学年高二上学期开学考试数学试题
解题方法
9 . 设
,
,函数
.
(1)设不等式
的解集为C,当
时,求实数
取值范围;
(2)若对任意
,都有
成立,试求
时,
的值域;
(3)设
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8310f1a95bb878675b9a75e229162308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79589852bc8b54b23f6927f8ef8ee152.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb713ef84dd1cca1df8e0c7c7ea6cab.png)
(1)设不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc9ede2e55724383dd1093fc7fcdb59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bafb511452fb3b93485fe41c73810efd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/545931b962cf570712d04888b57093f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88b0f22e428059b6f66ee57d715ff3c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cfcc567b95a320abcb25509923cd001.png)
您最近一年使用:0次
2020-09-13更新
|
242次组卷
|
2卷引用:四川省宜宾市叙州区第二中学校2020-2021学年高二上学期开学考试数学(文)试题
名校
解题方法
10 . 已知函数
(
,
),且
的解集为
;数列
的前
项和为
,对任意
,满足
.
(1)求数列
的通项公式;
(2)已知数列
的前
项和为
,满足
,
,求数列
的前
项和
;
(3)已知不等式
对
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bab93efd42a3054040ccff8adf697c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0097ca400d4619a94c4282c1ef6ec68e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0b05849c5aa6777c65d0035f08ad96e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7258b3bad12e61e6a7e666757b2c752.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58ea95825136ea3d7c56e697d9512d5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52c9237cb0b4acc568d4afb12997186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
(3)已知不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0be3471685025e05e95a7d9218b4af0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2020-09-21更新
|
348次组卷
|
2卷引用:四川省江油中学2019-2020学年高一下学期期中考试数学试题