题目
题型:0119 月考题难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091751-32135.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091751-69074.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091751-95269.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091751-24719.gif)
联立方程
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091752-14445.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091752-53717.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091752-69237.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091752-49281.gif)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091752-73564.gif)
化简,得
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091753-38122.gif)
∴边长为
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091753-24023.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091753-56836.gif)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091738-67089.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091738-72687.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091738-58046.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091738-27976.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091738-16304.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091729-90988.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091729-29510.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091730-90650.gif)
(1)试证:
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091730-88544.gif)
(2)取
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091730-58903.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091730-96241.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091730-73374.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091730-66866.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024091730-47327.gif)
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