题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203729-57914.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203729-25230.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203730-51642.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203730-28855.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203730-97826.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
答案
解析
试题分析:
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203732-15670.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203733-53747.png)
所以函数
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203733-32646.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203733-32646.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203730-97826.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203733-34663.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203734-48280.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203734-88660.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203734-76352.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203735-94974.png)
点评:本题有一定难度,首先通过选项结合已知条件
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203730-97826.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203733-32646.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203706-83507.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203706-72451.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203706-98273.png)
(1)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203707-59344.png)
(2)若关于
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203707-60134.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203708-64330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203708-68395.png)
(3)数列
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203709-29262.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203709-76592.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203709-58217.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203710-54839.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203632-18123.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203632-60365.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203633-76836.png)
(2)已知函数
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203633-92635.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203634-63895.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203634-36134.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203634-70941.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203635-82595.png)
求证:
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203635-58015.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203601-73292.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203601-20972.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203601-68324.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203601-68324.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203601-20972.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203602-23451.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203601-20972.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203602-76832.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203602-64778.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203601-20972.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203602-10782.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203603-87504.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203603-65450.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203602-64778.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203601-20972.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203603-83129.png)
A.4 B.3 C. 2 D.1
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203541-88282.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203542-37995.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203509-65880.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203510-30754.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203510-11430.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203510-88468.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203510-11785.png)
(1)证明
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203509-65880.png)
(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203511-92865.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203511-91773.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203511-69571.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203509-65880.png)
(3)在(2)的条件下,当
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203511-99525.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203509-65880.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204203511-26376.png)
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