解题方法
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1a7e017fd21ff877b21d9d56170fe33.png)
(1)若不等式
的解集为
,求
的值;
(2)若对任意的
恒成立,求实数
的取值范围
(3)已知
,当
时,若对任意的
,总存在
,使
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1a7e017fd21ff877b21d9d56170fe33.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa71f2ac3729ea7883f6ddfd2f2c9f1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac55d420e554e9a8352c1523a3e0043e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/449c49fa6f7adb40751a5db629162ee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b2dad86109e03c55b9999a4cd53d7e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0496d81c441e6cfa9c26ff7e83746eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a32fef274f43f90a37c57c46f2c670.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
解题方法
2 . 已知函数
,
的解集为
或
.
(1)求实数
,
的值;
(2)
,
,当
时,有
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7d8f223d1d2d178ae71e616669c9f81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc70834d8530ac74608b49458f5db148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f98d21cbb21fcb8392e77e462c1da76.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35eac3ba2858adffcd1f8052cd795269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7123c1457d51b94cac0db20631a6984.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8d4e064187371c25e111d25a29542f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
3 . 已知
,若关于x的不等式
的解集是
.
(1)求a的值;
(2)若关于x的不等式
在
上恒成立,求实数b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce9a91332440ae5eb3495cbc4cbd64b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138506a762e636aa75a4d54f5b739b89.png)
(1)求a的值;
(2)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c93a5df4808c014f0b4aeffefb3d05e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5432187d1c042787433b7633292d00fe.png)
您最近一年使用:0次
2020-07-04更新
|
1001次组卷
|
3卷引用:吉林省吉林市吉化一中2019-2020学年高一下学期期末(文科)数学试题
名校
4 . 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:吉林省吉林市第十二中学2022-2023学年高一上学期期末数学试题