2020·江苏·一模
解题方法
1 . 已知函数
,
.
(1)当
时,求不等式
的解集;
(2)若
对
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37b7b1398b1fc722b390d311f37ae275.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc2ae3d3787d2bf66b5aea4e08aa8121.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acda6b6464db27e1ec18a1522406d2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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19-20高三·江西南昌·阶段练习
2 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328c4b5f6e6d42af326d8c9ed581d637.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac9c350bf9993451e7038e9698904e90.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
3 . 已知函数
.
(1)若关于
的不等式
的解集为
,求实数
的取值范围;
(2)设
表示
、
二者中较小的一个,若函数
,求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c19778e999ac9927ee65b88d4439abac.png)
(1)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee4c14629fe2103f156a5ae77bee2b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3771382719707b8eb54777be405ab0e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/178d0ab9417a5f9ad9d2cd324612d642.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6589756dfb4c54aebb0fa3424eccd905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
您最近一年使用:0次
2020-04-01更新
|
247次组卷
|
5卷引用:2019届四川省成都七中高三4月模拟测试数学文科试题
名校
解题方法
4 . 设函数
.
![](https://img.xkw.com/dksih/QBM/2020/3/29/2430054929588224/2430691270508544/STEM/702b533bb1ce40a394c6f6e414759203.png?resizew=259)
(1)画出
的图象;
(2)设
的解集为
,若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e14ab8ca2428c518561c72e20c19311.png)
![](https://img.xkw.com/dksih/QBM/2020/3/29/2430054929588224/2430691270508544/STEM/702b533bb1ce40a394c6f6e414759203.png?resizew=259)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e2405c4822bceae1cf191edb502d3b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46638e21747c013c68d852b9185c73ef.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
5 . 已知
.
(1)求不等式
的解集;
(2)设
、
、
为正实数,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25d006b8fc4f1ddc68b3fa582179e9f2.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a8cb96a9e39bc196289712c325265c.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7396dff61afb9a234cf52ebe8bf70eb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/754a0b7002c7adda391ae9c297a64f33.png)
您最近一年使用:0次
2020-03-27更新
|
343次组卷
|
13卷引用:2016届云南省师大附中高三适应性月考二理科数学试卷
2016届云南省师大附中高三适应性月考二理科数学试卷2016届云南省师大附中高三适应性月考二文科数学试卷2016届湖南省师大附中高三上学期月考六文科数学试卷2016届宁夏银川二中高三三模拟理科数学试卷2016届宁夏银川二中高三模拟三文科数学试卷2015-2016学年福建师大附中高二下期末数学(理)试卷安徽省“皖南八校”2018届高三第三次(4月)联考数学(理)试题【全国校级联考】安徽省“皖南八校”2018届高三第三次(4月)联考数学(文)试题2019届广东省潮州市高三第二次模拟数学(文)试题2020届四川省宜宾市叙州区第二中学校高三三诊模拟考试数学(理)试题2020届四川省宜宾市叙州区第二中学校高三三诊模拟考试数学(文)试题福建省厦门市第一中学2020届高三最后一模数学(文)试题云南省弥勒市第一中学2019-2020学年高二下学期第三次月考数学(文)试题
解题方法
6 . 已知函数
,
.
(1)当
时,求函数
的值域;
(2)
,
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/babc0864cf44cc7a871b25a5ad8b97c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438304e49a0bf47d5f1fffd58783f031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ae1c3129e8b87b3abc65f19dc39dac5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-03-25更新
|
331次组卷
|
3卷引用:2019届四川省成都市高三第三次诊断性检测数学(文)试题
解题方法
7 . 已知函数
.
(1)
时,求不等式
解集;
(2)若
的解集包含于
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63510b7bff1f176e86abd7db175a102f.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2608a57caffde627dbf140ca22a2ff8a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/810e8fa5cf17ae94a41803772c488726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ca681ae72055316ef35c01fdb27034.png)
您最近一年使用:0次
名校
解题方法
8 . 已知
.
(1)求
;
(2)已知
、
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a47fbf219806f2c9053d893521016c27.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dab92728b35ed5798e07a2b0095bfcc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dab86d57f9d116c72286e770aa29bbd.png)
您最近一年使用:0次
名校
解题方法
9 . 设函数
,
.
(1)解不等式
;
(2)若
对任意的实数
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f8f3126ff0cb825c5ac1560291eb63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d532796552448d356e38ab22fd1dca0.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447d6f62c09c1d05346fd16a24159f6e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d58148e630a6aaf22610bce32ed8536c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
10 . 已知f(x)=|2x﹣1|﹣|2x+1|.
(1)求不等式f(x)>1的解集.
(2)当
时,求证:4x2+4x+2>(2x+1)f(x).
(1)求不等式f(x)>1的解集.
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d8cac9b417849a2a3c8d604e05987e.png)
您最近一年使用:0次