题目
题型:解答题难度:简单来源:不详
已知函数
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065731-24291.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065731-34012.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065731-36762.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065732-66403.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065732-31983.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065732-17680.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065732-71803.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065732-44605.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065733-52263.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065733-53067.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065733-25240.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065733-88992.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065732-71803.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065732-44605.gif)
核心考点
试题【(本小题满分12分)已知函数在有最大值和最小值,求、的值。】;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
设二次函数
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065726-38851.gif)
①
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065726-71079.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065726-67535.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065727-46497.gif)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065726-67535.gif)
(2)若不等式
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065727-28146.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065727-85032.gif)
已知函数
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065720-99620.gif)
(1)证明:当
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065721-94508.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065721-96961.gif)
(2)若函数
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065721-96961.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065721-99873.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065719-49195.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065715-73747.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065713-45165.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065713-22185.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065713-27747.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819065713-43578.gif)
A.![]() | B.![]() | C.![]() | D.不存在 |
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