题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103906-20375.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103906-31676.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103906-77791.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103906-25356.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103906-31676.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103906-48929.png)
解析
试题分析:设点
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103907-58758.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103907-25186.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103907-92251.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103907-55454.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103907-95975.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103904-47713.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103904-47713.png)
为
已知抛物线的焦点坐标是F(0,-2), 求它的标准方程。
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103857-69123.png)
(1)求抛物线C的方程及点M的坐标;
(2)过点M作倾斜角互补的两条直线分别与抛物线C交于A,B两点,如果点M在直线AB的上方,求
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103857-45113.png)
已知顶点在坐标原点,焦点在
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103853-66529.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103853-23394.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103853-63929.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103842-57929.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103842-57929.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103842-49747.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103842-56536.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103842-82873.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103842-70185.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103842-49747.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103842-49747.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103842-57929.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103843-70141.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103843-33999.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103842-49747.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103843-41758.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103843-33999.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103843-72839.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103844-96474.png)
(1)求抛物线的方程
(2)试确定直线通道
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103842-70185.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103842-56536.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024103844-73251.jpg)
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