题目
题型:解答题难度:一般来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222627-15017.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222627-44784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222627-86261.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222627-69512.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-49804.png)
(Ⅰ)求
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-11784.png)
(Ⅱ)若直线
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-78541.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222627-15017.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-29412.png)
(Ⅲ)试讨论当实数
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-81548.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222629-34844.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222629-73957.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222629-43791.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222629-73957.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222629-87747.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222629-29720.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222630-29267.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222630-98776.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222630-20650.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222630-20107.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222631-11121.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222631-80197.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222631-21024.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222631-46940.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222630-20650.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222631-77938.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222631-21231.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222632-91196.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222632-28155.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222632-20600.png)
解析
试题分析:(1)由
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-11784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222632-76633.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222627-69512.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222632-60802.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222632-79103.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222633-11699.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222633-65819.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222633-23888.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222633-87961.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-11784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222633-35332.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222634-63692.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-11784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-11784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222634-89745.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-11784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-78541.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222634-13873.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-11784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-78541.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222630-98776.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222634-83105.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222634-71293.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222635-38718.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222634-89745.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222630-98776.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-11784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222629-34844.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222629-73957.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222629-43791.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222629-73957.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222629-87747.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222635-57063.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222627-69512.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222635-15085.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222635-26465.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222635-76783.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222637-34352.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222637-25242.jpg)
图1 图2
试题解析:(1)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222638-87433.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-11784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222632-76633.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222633-65819.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222633-23888.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222638-44460.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222638-26363.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222633-35332.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222634-63692.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222638-67631.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222638-55484.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222629-29720.png)
(2)如下图,当
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222634-89745.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-11784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-78541.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222639-63303.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222639-45570.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222634-13873.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-11784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222628-78541.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222632-79103.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222633-11699.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222630-98776.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222634-83105.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222639-66715.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222639-54500.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222639-63726.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222633-35332.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222632-79103.png)
故综上:
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222640-77316.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222640-31133.jpg)
(3)当
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222630-98776.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222630-20650.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222631-77938.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222631-11121.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222631-80197.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222631-21024.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222631-46940.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222630-20650.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222631-77938.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222640-24528.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222632-91196.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222632-28155.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222632-20600.png)
核心考点
试题【已知偶函数满足:当时,,当时,.(Ⅰ)求表达式;(Ⅱ)若直线与函数的图像恰有两个公共点,求实数的取值范围; (Ⅲ)试讨论当实数满足什么条件时,直线的图像恰有个公】;主要考察你对函数的奇偶性与周期性等知识点的理解。[详细]
举一反三
①定义域为R的函数
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222617-57939.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222622-26478.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222623-17662.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222623-52777.png)
②定义在R上的函数
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222623-57832.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222623-44704.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222623-10040.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222623-57832.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222624-35344.png)
③函数
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222617-57939.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222624-75689.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222623-52777.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222624-34771.png)
③函数
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222624-52197.png)
⑤若函数
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222625-33193.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222625-70053.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222625-21840.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222625-36516.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222625-88041.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222625-25048.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222606-52261.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222607-17687.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222607-17687.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222606-52261.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222607-81324.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222607-80915.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222607-79382.png)
A.(![]() | B.(![]() | C.(![]() | D.(![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222602-76101.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222602-63978.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222602-43760.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222603-88690.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222603-31316.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222603-42205.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222603-49885.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222604-34134.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222554-47204.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222600-54545.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222554-47204.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222554-47204.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222552-47370.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818222552-44166.png)
A.0 | B.1 | C.2 | D.3 |
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