名校
1 . 已知
,若关于x的方程
有四个不相等的实根
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d172af566bfe6b480bed90f595c52f03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a75faf121e3293a5d65a96e08db97675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ccd22fd0ca1a8e1468329284f91b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a3d41be26be9622d0cbc9825778b362.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
2 . 已知定义在
上的函数
满足
,
,且当
时,
,若函数
在
上至少有三个不同的零点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c0f05773123ba547d3c3601f846f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4f1f72160ba6264ed14ebc4cec6de04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efce84bfe9f393ee64981a7e1ad78cd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac9061bea3c285e7341cab662f8bae7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
A.![]() ![]() | B.当![]() ![]() |
C.当![]() ![]() | D.a的取值范围是![]() |
您最近一年使用:0次
2021-02-03更新
|
977次组卷
|
5卷引用:江西省景德镇市第一中学2021-2022学年高一(重点班)上学期期末数学试题
江西省景德镇市第一中学2021-2022学年高一(重点班)上学期期末数学试题湖北省2020-2021学年高一上学期元月期末数学试题河南省郑州市第四高级中学2023-2024学年高一上学期第二次调研考试数学试题(已下线)湖南省株洲市2023届高三下学期一模数学试题变式题11-16(已下线)湖南省株洲市2023届高三下学期一模数学试题变式题11-16
名校
3 . 已知正实数
满足
,
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ad70ae8a9d08e63fd173bbab166d39b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0091760307274e4e23e6068d66628fdb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-09-23更新
|
1854次组卷
|
8卷引用:江西省上饶中学2019-2020学年高一上学期期中数学(奥赛班)试题
4 . 函数
,若
互不相等,若
则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba1042260a9a0f84858fc02bee2f65f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6637110325fc5bcb6337762aecf53d4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae24688d4c45aad43e9af0b7bbfda6b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次