题目
题型:解答题难度:一般来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023840-41641.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023841-61076.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023841-56490.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023841-10290.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023841-61076.png)
(2)求
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023841-67740.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023841-12543.png)
(3)当
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023841-42895.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023842-10770.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023842-25062.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023842-60381.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023842-54029.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023842-37433.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023843-89785.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023843-43693.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023843-58958.png)
解析
试题分析:(1)根据
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023843-43451.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023843-76842.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023844-83437.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023841-61076.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023844-85389.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023841-67740.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023841-67740.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023844-23513.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023844-47753.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023844-18007.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023845-87754.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023845-22493.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023845-69107.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023845-61694.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023845-21222.png)
试题解析:(1)由
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023846-73092.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023846-41263.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023842-54029.png)
(2)∵
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023846-66763.png)
①当
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023846-53465.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023846-72904.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023846-27840.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023847-99956.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023847-73195.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023847-85580.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023847-12500.png)
②当
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023847-16091.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023848-86350.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023846-27840.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023847-99956.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023848-27562.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023848-66473.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023848-40380.png)
(3)由(2)得
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023841-67740.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023848-54996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023849-56258.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023849-74073.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023849-13954.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023845-87754.png)
令
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023849-89710.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023849-50916.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023850-87391.png)
所以
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023843-89785.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023843-43693.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023843-58958.png)
核心考点
试题【设函数(为实常数)为奇函数,函数().(1)求的值;(2)求在上的最大值;(3)当时,对所有的及恒成立,求实数的取值范围.】;主要考察你对一次函数的图象和性质等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023837-71519.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023837-58465.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023837-83049.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023834-31933.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023834-18973.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023834-17756.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023834-31933.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023828-60962.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023828-64872.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023828-88864.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023828-50182.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023828-60962.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023829-99307.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023829-40536.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023829-93674.png)
(3)当
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023829-80416.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023829-99307.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023829-38615.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023829-93674.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023820-72781.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023820-15022.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023820-45564.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023817-85477.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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