题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174449-11382.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174449-77779.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174449-96546.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
试题分析:因为,函数
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174449-11382.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174449-77779.png)
所以,
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174450-11646.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174451-77925.png)
点评:简单题,利用函数的定义,建立a的方程求解。
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174408-57855.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174409-61399.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174409-22660.png)
A.![]() | B. 8 | C. 7 | D. 2 |
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174357-27461.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174357-76125.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174341-62893.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174342-68013.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174342-10017.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174341-62893.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174342-57068.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174342-40919.png)
A.![]() | B.![]() | C.![]() | D.(![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174257-16239.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174257-45755.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174257-58093.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174258-66930.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174258-66930.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174257-58093.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174258-99141.png)
(3)若
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174258-66930.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174257-58093.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174259-34867.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174207-98256.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174207-22622.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174207-41698.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174207-76850.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174208-11435.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174208-73409.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174208-72285.png)
(1)解不等式
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174208-23534.png)
(2)解方程
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204174208-71354.png)
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