题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106061503-77105.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106061503-59228.png)
证明:构造函数
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106061503-76521.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106061503-18328.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106061503-11938.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106061504-85959.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106061503-59228.png)
根据上述证明方法,若n个正实数满足
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106061504-95870.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106061504-94494.png)
解析
试题分析:构造
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106061504-80620.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106061505-52888.png)
因为
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106061505-52457.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106061503-11938.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106061505-19100.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106061505-96821.png)
即
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106061506-17446.png)
核心考点
试题【请阅读下列材料:若两个正实数a1,a2满足,那么.证明:构造函数,因为对一切实数x,恒有,所以 ,从而得,所以.根据上述证明方法,若n个正实数满足时,你能得到的】;主要考察你对合情推理与演译推理等知识点的理解。[详细]
举一反三
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