题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073606-78304.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073606-88096.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073606-78501.gif)
(1)求c的值;(2)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073607-83445.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073607-24802.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073607-54674.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073607-36940.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073607-98359.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073607-34402.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073606-88096.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073607-34402.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073608-92490.gif)
(2)证明:∵
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073607-34402.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073606-88096.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073608-13718.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073606-88096.gif)
上恒成立,且
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073608-96954.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073608-22331.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073608-34478.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073606-88096.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073608-22331.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073607-54674.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073609-97111.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073609-67246.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073607-83445.gif)
(3)解:∵
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073609-94280.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073609-87726.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073609-93785.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073610-14152.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073607-54674.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073607-36940.gif)
核心考点
试题【(本小题满分14分)已知函数在(0,+)上是增函数,在[–1,0]上是减函数,且方程有三个根,它们分别为α,–1,β.(1)求c的值;(2)求证:;(3)求|α】;主要考察你对常见函数的导数等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073557-65173.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073557-20270.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073557-27975.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073557-62708.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073557-96197.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073557-34806.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073557-19900.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073557-19900.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073558-53941.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073558-80394.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073558-80648.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073558-57651.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073558-18042.gif)
设函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073547-93393.gif)
(Ⅰ)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073547-29835.gif)
(Ⅱ)已知
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073547-21276.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073548-31158.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073548-58931.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073538-86442.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073538-45023.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073538-90892.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073538-41341.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073539-53605.gif)
(Ⅰ)求实数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073539-81492.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073539-58726.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073539-16896.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073540-42075.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073540-19974.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073526-60319.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073521-83984.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073521-70052.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018073521-26051.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
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