题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041844-80430.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041844-80430.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041844-54605.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041844-62934.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041844-92270.gif)
解析
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041838-74678.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041831-47652.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041831-77090.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041830-68061.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041819-28435.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041819-31558.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041819-31957.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041820-42573.jpg)
(1)求证:异面直线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041819-31558.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041820-65718.gif)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041820-10231.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041820-92883.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041820-80696.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041821-72009.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041821-61700.gif)
半径都是2km,点P在圆Q上,现要在公园内建一块顶点都在圆P上的多边形活动场地.
(1)如图甲,要建的活动场地为△RST,求场地的最大面积;
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023041812-28603.gif)
A.(x-1)2+(y+2)2=100 |
B.(x-1)2+(y-2)2=100 |
C.(x-1)2+(y-2)2=25 |
D.(x+1)2+(y+2)2=25 |
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