名校
1 . 已知不等式
在
上恒成立,则实数
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dcc9e4e9d3f1930dc64e5bd436548ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.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
2 . 已知函数
,
.
(1)当
时,解关于x的不等式
;
(2)若
对任意
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df3c0b15c0e9ad0e9348189cb160ab8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2074439beb9f123aa9e83f785b8a6e46.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/972592728257d4ed956be1c5f3a097f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05fce924911d5ed93147dfce9e41c2b0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05fce924911d5ed93147dfce9e41c2b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
您最近一年使用:0次
名校
解题方法
3 . 已知
且
则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa8e3deed4ff7dd63a17330d92317044.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd24c686fbaaa68705d654b880481ffe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f352f97803f55b21c0dd569caa4956f9.png)
A.1 | B.![]() | C.![]() | D.2 |
您最近一年使用:0次
2021-07-16更新
|
560次组卷
|
3卷引用:安徽省黄山市屯溪第一中学2020-2021学年高二下学期期末文科数学试题
名校
解题方法
4 . 已知函数
.
(1)若
,求不等式
的解集;
(2)若关于
的不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3416b71fc4c46b1e8e0793d3c9cf20ff.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aed39f5aca78934fb383402433fe549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e427d39c1dfdf0e3f9a65493429700.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0dd18467feea8eb478f4669a32c2d57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2021-07-15更新
|
254次组卷
|
3卷引用:江西省景德镇一中2020-2021学年高二下学期期末数学(理)试题
名校
解题方法
5 . 已知函数
的最小值为1.
(1)求a的值;
(2)若
,且
,求
的最小值及此时
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2996c4170bb30cefa6a5c0c0827f0d54.png)
(1)求a的值;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69ee6696dee035519e1ba7fb78269830.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bd6e4185a3de5a361c4a87c62a770a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b584c145fce768f9eda1b4de67fb1001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
您最近一年使用:0次
名校
解题方法
6 . 已知函数
.
(1)求不等式
的解集;
(2)若
,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59eefbae0aa742fadce3d76209624c31.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b819549486ddeafc1b4cbcb0ded85.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/463fe782921c1fbe2e49e4a6677f0293.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d2ab6c7742aeab8aec0aa7c85f2a63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2021-07-15更新
|
251次组卷
|
3卷引用:河南省新乡市新乡县第一中学2020-2021学年高二下学期期末考试数学(文)试题
名校
7 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd0c040f249b19b6f1e54b2ea2d3ecd.png)
(1)当
时,求
的解集;
(2)若对
使得
成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd0c040f249b19b6f1e54b2ea2d3ecd.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822e7faca9f32459a6dfb1da73e6cec2.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e921867ec21e61958bee05b1fd6530a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8914d9fc87fafacce818c57c019810f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
8 . 已知函数
.
(1)若不等式
的解集为
,求实数
的值;
(2)若
,函数
的图象与
轴围成的三角形的面积大于
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0858b60448ca8f5ab4f5c11ecfffe8d5.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92d157b542dee8f3fbd97618668ccdb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d775dfa12a7bcf8599554e854a0f21b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be84a343ceb8b1bc62b63b4e2145a012.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da45c443af7994a26ffa9d8894e7262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
9 . 若关于
的不等式
成立的充分条件为:
,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/33615588fccce3ac3e9eada36fd581e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cafe647840cc2ace0d94bdca3c4fb03d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-07-10更新
|
335次组卷
|
2卷引用:安徽省“皖南八校”2020-2021学年高二下学期联考文科数学试题
名校
10 . 已知函数
,函数
.
(1)求不等式
的解集;
(2)设
的最大值为M,若关于
的不等式
在
上恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/974f629a0413e9d1aa2f23d2d162d2bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa855ed8c512c375ea43eb7854b5c0a.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598e3c585fab75a4f0ee967b93b65493.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d52155980d7009a5dfde32869ce199ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fdd4e3401ce69071c91f1f068501f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2021-07-09更新
|
324次组卷
|
4卷引用:陕西省商洛市2020-2021学年高二下学期期末理科数学试题