【题文】函数的图象是
【题文】函数的图象是
题型:难度:来源:
【题文】函数
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091858-74065.png)
的图象是
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091858-94841.jpg)
答案
【答案】B
解析
【解析】
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091859-88431.png)
的定义域为
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091859-79629.png)
,所以排除A,D;当
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091900-73211.png)
时,
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091859-88431.png)
为增函数,所以排除D,故选B.
考点:函数的图像与性质.
举一反三
【题文】已知定义在R上的奇函数
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091848-38468.png)
,当
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091849-70502.png)
时,
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091849-66839.png)
.若关于
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091849-70075.png)
的不等式
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091850-61259.png)
的解集为
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091850-86321.png)
,函数
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091848-38468.png)
在
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091851-13735.png)
上的值域为
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091851-65829.png)
,若“
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091852-58941.png)
”是“
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091852-73869.png)
”的充分不必要条件,则实数
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091852-77041.png)
的取值范围是__________.
【题文】如果
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091830-99955.png)
,那么
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091831-43738.png)
_________.
【题文】如果
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091824-23870.png)
,那么
【题文】如果
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091805-83964.png)
,那么
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091805-30658.png)
_________.
【题文】如果
![](http://img.shitiku.com.cn/uploads/allimg/20200330/20200330091758-34132.png)
,那么
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