名校
1 . 已知函数
,若存在四个实数
,
,
,
,使得
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6ea84cabb1b650608312223fef179e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff8a6c0f752f63f95ffb36a68443af3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138348b078a119a26e9848cad0f060a2.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2024-01-27更新
|
224次组卷
|
2卷引用:福建省宁德市2023-2024学年高一上学期1月期末质量检测数学试题
2 . 设函数
是偶函数.
(1)求
的值,并求不等式
的解集;
(2)若不等式
对任意实数
恒成立,求实数
的取值范围;
(3)设函数
,若方程
=0在
上有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25f3d1e7cbad2d45704f96028f954d4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaa7a77ac2683cc6e8e794f3e0a0ca0a.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d114f9b0a0ded5522762187dbc696b4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/336c808fdb014c292c443a6105fcfb31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd330acca8e17f5ff9aca1f0f312df50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11b481c660bea0673fdd7b31679cab53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次