题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033456-32751.png)
答案
解析
试题分析:由双曲线方程
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033456-93932.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033456-49601.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033456-46378.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033457-91333.png)
点评:解决该试题的关键是根据题意得到a,,b,c的值,得到焦点坐标,进而结合点到直线的距离公式求解距离。
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033438-54767.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033438-46240.png)
(1)若直线m与x轴正半轴的交点为T,且
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033438-14009.png)
(2)求直线A1P与直线A2Q的交点M的轨迹E的方程;
(3)过点F(1,0)作直线l与(Ⅱ)中的轨迹E交于不同的两点A、B,设
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033438-32880.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033438-18203.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033430-35752.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033431-79772.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033431-87710.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033431-37935.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033430-35752.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033431-87710.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033431-22344.png)
(1)求抛物线
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033430-35752.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033431-87710.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033421-27887.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033421-99976.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033421-89787.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033421-30026.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033422-50821.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033422-23171.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033422-58738.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033421-30026.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033422-38579.png)
(Ⅰ)求双曲线的方程;
(Ⅱ)过点
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033422-21321.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033422-74596.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033422-91530.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033422-24019.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033422-74596.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033414-99183.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033414-23112.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024033410-36679.png)
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