【题文】设函数 A.B.C.D.2
【题文】设函数 A.B.C.D.2
题型:难度:来源:
【题文】设函数
答案
【答案】C
解析
举一反三
【题文】定义在R上的函数
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191428-83649.png)
,当
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191429-42213.png)
时,
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191429-81631.png)
,且满足下列条件:
①
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191429-89782.png)
②
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191429-74628.png)
, ③
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191430-33162.png)
.则
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191430-59741.png)
等于
【题文】二次函数
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191423-32530.png)
有两个不同的零点,着M取值范围为( )。
A.(-2,6) | B.[-2,6] | C.{-2,6} | D.![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191424-76452.png) |
【题文】方程
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191418-77888.png)
的解集是( )
A.{3} | B.{-1} | C.{-1,3} | D.{1,3} |
【题文】函数
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191410-10273.gif)
满足条件
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191410-47742.gif)
,则
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191411-61720.gif)
的值为( )
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191411-86914.gif)
.5
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191411-21597.gif)
.6
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191411-88863.gif)
.8
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191411-64689.gif)
.与
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191412-64420.gif)
,
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191412-65390.gif)
值有关
【题文】
设函数
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191400-17833.gif)
是定义在
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191400-22300.gif)
上的函数,且对于任意的
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191401-79179.gif)
,有
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191401-17534.gif)
,
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191401-81754.gif)
,若
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191401-46735.gif)
,则
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191401-91220.gif)
( )
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191402-17701.gif)
.
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191402-78728.gif)
.
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191403-86626.gif)
.
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191404-47721.gif)
.
![](http://img.shitiku.com.cn/uploads/allimg/20200324/20200324191404-31171.gif)
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