题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021446-89404.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021446-36299.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021446-42474.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021446-62402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021446-25774.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021446-98749.png)
解析
试题分析:设
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021446-67797.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021447-56509.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021447-87075.png)
又因为定于域为
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021447-32350.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021447-20859.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021447-57484.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021447-75319.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021447-56195.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021446-98749.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021438-42488.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021439-52254.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021439-86699.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021439-41604.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021439-15842.png)
A,
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021440-34772.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021440-60987.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021440-97047.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021440-75287.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021426-16529.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021426-75582.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021426-37985.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021427-84707.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021427-47996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021427-74023.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021427-46679.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021416-42375.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021417-33664.png)
A.1 | B.2 | C.3 | D.4 |
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021411-51970.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021411-66291.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021411-99177.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021411-85147.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021358-15303.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021358-10610.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021358-74448.png)
(1)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021358-61309.png)
(2)求证:对于任意的
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021358-79029.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018021359-22421.png)
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