题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114538-23452.png)
(1)设
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114538-84462.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114539-14215.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114539-13444.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114539-12934.png)
(2)设
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114539-37719.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114539-94505.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114540-39624.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114540-40874.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114540-50513.png)
(3)在(1)的条件下,设
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114540-96269.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114539-13444.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114539-12934.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114541-69090.png)
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114541-69946.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114541-15744.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114541-47808.png)
【考点定位】本题主要考察函数与方程,导数的综合应用,函数与数列的综合,考查综合能力
核心考点
试题【设函数(1)设,,证明:在区间内存在唯一的零点;(2)设,若对任意,有,求的取值范围;(3)在(1)的条件下,设是在内的零点,判断数列的增减性。】;主要考察你对函数的单调性与导数等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114531-37185.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114531-72567.png)
A.(![]() | B.(0,1] | C.[1,+∞) | D.(0,+∞) |
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114517-47667.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114517-26438.png)
(Ⅰ)当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114517-89547.png)
(ⅰ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114517-48373.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114518-73501.png)
(ⅱ)若关于
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114521-70664.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114521-23352.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114521-80211.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114521-16228.png)
(Ⅱ)已知曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114521-19053.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114522-79423.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114522-67866.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114522-67647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114522-95247.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114522-90015.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114523-87463.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114523-33267.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114523-13410.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114506-78845.png)
(1)若函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114506-54564.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114506-51238.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114507-46513.png)
(2) 若函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114507-49780.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114507-98408.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114507-46513.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114506-51238.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114506-54564.png)
的单调性.
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114444-25066.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114445-65074.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114445-31956.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114430-20149.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114430-59556.png)
(I)求a,b的值;
(II)证明:
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018114430-19945.png)
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