名校
解题方法
1 . 已知二次函数
.
(1)若
的解集为
,解关于
的不等式
.
(2)若对任意
,
恒成立,求
的最大值.
(3)已知
,
,若
对于一切实数
恒成立,并且存在
,使得
成立,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331d5e308cd5469e0f28a8d75f79903f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/731a60bd452d3df26022ff906092946f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b03f81246769936154d50d832366d.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229143db4bbe2991164a32188410fcdc.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3320a13248a3a1208ff6ee85c9d26f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/069390dd908ff203327958117a226593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/799b324b514d6044672c133d8fef2dc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/017e6e26ce02c89166e87a2a7c9399e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2adf751c67f525b5738c44b4cf02d4a0.png)
您最近一年使用:0次
2021-10-19更新
|
765次组卷
|
7卷引用:福建省连城县第一中学2023-2024学年高一上学期10月月考数学试题
名校
解题方法
2 . (1)当
时,解关于
的不等式
;
(2)若对
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fb6d53423a5f757336c7ff27a8423d.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a7b784381c282fc5f788485316c943c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4fa7fd1f51e8bc8fe92f5a40e035210.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2023-02-25更新
|
290次组卷
|
3卷引用:福建省龙岩市永定区侨育中学2023-2024学年高一上学期第一次阶段考试数学试题
名校
解题方法
3 . 已知函数
(其中
).
(1)当
时,解关于x的不等式
;
(2)若
的解集为
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e4e6872e6f127af54be5e89cb922cf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8e1dd8da540badcb9a8f427c5b202e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2402680c3eee8c0f89b8cbf151aafeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
您最近一年使用:0次
2022-09-14更新
|
1372次组卷
|
5卷引用:福建省龙岩第一中学2022-2023学年高一上学期第一次月考数学试题