题目
题型:填空题难度:一般来源:不详
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答案
解析
试题分析:由
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核心考点
试题【已知定义域为的函数满足:(1)对任意,恒有成立;(2)当时,.给出如下结论:①对任意,有;②函数的值域为;③存在,使得;④“函数在区间上单调递减”的充要条件是 】;主要考察你对分段函数等知识点的理解。[详细]
举一反三
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A.![]() | B.1 | C.![]() | D.3 |
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![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818002609-85411.png)
(Ⅰ)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818002609-39697.png)
(Ⅱ)求证:对任意的
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818002610-64871.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818002610-40495.png)
(Ⅲ)若
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818002610-95772.png)
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A. | B.1或 | C.1,或± | D.1 |
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818002553-36109.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818002554-96067.png)
(Ⅰ)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818002555-22811.png)
(Ⅱ)求证:对任意的
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818002555-50508.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818002555-74252.png)
(Ⅲ)证明:
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818002555-40786.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818002553-36109.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818002548-56198.png)
A.4 | B.3 | C.2 | D.1 |
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