题目
题型:解答题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173436-36839.png)
(2)已知
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173437-78557.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173437-41430.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173437-30022.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173439-43576.png)
解得
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173439-61088.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173439-70807.png)
所以,
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173436-36839.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173439-81720.png)
(2)由
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173437-78557.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173437-41430.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173440-37196.png)
令
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173440-72030.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173440-64914.png)
有图像可知:当
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173440-58901.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173441-25286.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173441-21337.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173441-53201.png)
函数
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173437-30022.png)
解析
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173432-35199.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173432-54896.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173432-80504.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173433-13560.png)
A.R | B.(1,+ ![]() | C.[1,+ ![]() | D.[ ![]() ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173428-10149.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173428-55456.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173428-90474.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173428-62117.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173428-70395.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173429-26328.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173424-87186.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173424-51473.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173425-99373.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173425-99373.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173425-99373.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173425-99373.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173425-31935.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173425-23174.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173425-25233.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173425-48291.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173426-41588.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173426-52077.png)
A.216 | B.108 | C.48 | D.24 |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173417-54657.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173417-36875.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173417-36875.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173418-60274.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173418-59784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173418-90750.png)
A.{-![]() ![]() | B.{-1, 0} | C.{-1, 1} | D.{0} |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173410-49969.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173410-35557.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173411-41953.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173411-25687.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817173411-85184.png)
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