1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d86533a8d8dac9915b6538343d6b9a.png)
(1)讨论
的单调性;
(2)若方程
在
上有且只有一个实根,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d86533a8d8dac9915b6538343d6b9a.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4135646a1c78ccade80bac1d30d7a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589ed49839c4dc0b033431d88a4c1f94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2021-10-13更新
|
382次组卷
|
2卷引用:内蒙古海拉尔第二中学2021-2022学年高三上学期第二次阶段考数学(文)试题
名校
2 . 函数
,若方程
恰有四个不等的实数根, 则实数
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342a37f4c8d57e6bb9af01ffbad369b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/699157009da04b5f8a4f5b0cac1ffc77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2016-12-05更新
|
342次组卷
|
2卷引用:内蒙古巴彦淖尔市第一中学2018届高三上学期期中考试数学(理)试题
3 . 设函数
的定义域为
,若函数
满足条件:存在
,使
在
上的值域是
则称
为“倍缩函数”,若函数
为“倍缩函数”,则
的范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0195f699765021e2c6ea985e487971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/887f6a9979510535228f6167f152d06a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/595ff949a606dda5c90070211e046760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次