【题文】设 .
【题文】设 .
题型:难度:来源:
【题文】设
.
答案
【答案】3
解析
【解析】
试题分析:
![](http://img.shitiku.com.cn/uploads/allimg/20200331/20200331080242-13243.png)
,
![](http://img.shitiku.com.cn/uploads/allimg/20200331/20200331080243-45880.png)
.
考点:分段函数,指数与对数的运算.
举一反三
【题文】
![](http://img.shitiku.com.cn/uploads/allimg/20200331/20200331080041-33575.png)
,则( )
A.R<Q<P | B.P<R<Q | C.Q<R<P | D.R<P<Q |
【题文】设x,y∈R,a>1,b>1,若
![](http://img.shitiku.com.cn/uploads/allimg/20200331/20200331075848-17369.png)
,
![](http://img.shitiku.com.cn/uploads/allimg/20200331/20200331075848-23883.png)
,则
![](http://img.shitiku.com.cn/uploads/allimg/20200331/20200331075848-25595.png)
的最大值为( )
A.2 | B.![](http://img.shitiku.com.cn/uploads/allimg/20200331/20200331075848-39962.png) | C.1 | D.![](http://img.shitiku.com.cn/uploads/allimg/20200331/20200331075849-29333.png) |
【题文】已知函数
![](http://img.shitiku.com.cn/uploads/allimg/20200331/20200331075557-20340.png)
若函数
![](http://img.shitiku.com.cn/uploads/allimg/20200331/20200331075557-28450.png)
与
![](http://img.shitiku.com.cn/uploads/allimg/20200331/20200331075558-13311.png)
的图象有三个不同交点,则实数
![](http://img.shitiku.com.cn/uploads/allimg/20200331/20200331075558-18663.png)
的取值范围是
.
【题文】关于
![](http://img.shitiku.com.cn/uploads/allimg/20200331/20200331075054-60554.png)
的不等式
![](http://img.shitiku.com.cn/uploads/allimg/20200331/20200331075055-57793.png)
(
![](http://img.shitiku.com.cn/uploads/allimg/20200331/20200331075055-95062.png)
为实常数)的解集为
![](http://img.shitiku.com.cn/uploads/allimg/20200331/20200331075055-12312.png)
,则关于
![](http://img.shitiku.com.cn/uploads/allimg/20200331/20200331075054-60554.png)
的不等式
![](http://img.shitiku.com.cn/uploads/allimg/20200331/20200331075055-60141.png)
的解集为
.
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