9-10高二下·福建·阶段练习
1 . 已知
在区间[0,1]上是增函数,在区间
上是减函数,又![](https://img.xkw.com/dksih/QBM/2012/3/10/1570795386052608/1570795391516672/STEM/b5f57fb2a8e448bd81c52d90b2d645da.png)
(Ⅰ)求
的解析式;
(Ⅱ)若在区间
(m>0)上恒有
≤x成立,求m的取值范围.
![](https://img.xkw.com/dksih/QBM/2012/3/10/1570795386052608/1570795391516672/STEM/9d645c2f58ac46b6a79592b069d994a9.png)
![](https://img.xkw.com/dksih/QBM/2012/3/10/1570795386052608/1570795391516672/STEM/bcb75b5e8de44710939bb506952027db.png)
![](https://img.xkw.com/dksih/QBM/2012/3/10/1570795386052608/1570795391516672/STEM/b5f57fb2a8e448bd81c52d90b2d645da.png)
(Ⅰ)求
![](https://img.xkw.com/dksih/QBM/2012/3/10/1570795386052608/1570795391516672/STEM/984e43fb8a70474ba77253a72547a266.png)
(Ⅱ)若在区间
![](https://img.xkw.com/dksih/QBM/2012/3/10/1570795386052608/1570795391516672/STEM/369250fd60bc479abcc796df96d51594.png)
![](https://img.xkw.com/dksih/QBM/2012/3/10/1570795386052608/1570795391516672/STEM/984e43fb8a70474ba77253a72547a266.png)
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2016-11-30更新
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