1 . 设
,满足:关于x的方程
恰有三个不同的实数解
,且
,则
的值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf04fe8895c10624636a815d3d752975.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d698ae8e7d015f75b81b3a91a20d06a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8274a43216a0d0b32771dea087611ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
您最近一年使用:0次
名校
2 . 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”,则实数
的取值范围是________ .
![](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/40ee87e42cc88a4fdf1d21bf61781224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.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/ec480307e1b2f8c14086af6b9bf2cca9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e46bff1ba235329ed6ae1321e33f3b5.png)
您最近一年使用:0次
2020-03-19更新
|
1841次组卷
|
6卷引用:浙江省宁波市余姚中学2017-2018学年高二下学期期中数学试题