名校
1 . 已知函数
在区间
上有两个零点
,
,且
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e520b0da66313040789d021ffee99f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.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/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6d342e41ec2e0ab7c518318a5217ca9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-07-02更新
|
276次组卷
|
2卷引用:四川省达州市2021-2022学年高一下学期期末数学(文)试题
解题方法
2 . 已知函数
若方程
有四个不相等的实数根
,且
,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4176f12f54ceb20f9e888860d46fa6c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e9c6e8adb2580204c195e2321f91895.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ccd22fd0ca1a8e1468329284f91b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3604274ad6707a906eba371a9e884144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dd566a1f7f022b9c2337f87b1cb72b7.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
3 . 已知函数
,若
的图象上存在关于原点对称的点,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17a8a5602660f4fa37e19155fec1297c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次