题目
题型:不详难度:来源:
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113055-88324.png)
解析
试题分析:设B,C关于直线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113055-56286.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113055-37309.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113055-29498.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113055-87349.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113056-69463.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113056-31957.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113056-60254.png)
试题解析:设B,C关于直线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113055-56286.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113055-87349.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113056-12277.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113056-78397.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113057-77302.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113057-90184.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113057-77302.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113057-75599.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113056-69463.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113057-96152.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113057-77302.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113056-31957.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113058-35458.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113058-80466.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113055-88324.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113030-80243.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113030-20724.gif)
(1)证明:直线AB恒过定点Q;
(2)若点P与(1)中的定点Q的连线交抛物线C于M,N两点,证明:
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113030-31477.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025112944-68281.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025112945-78775.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025112937-68468.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025112937-30273.gif)
![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025112922-51599.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025112922-18770.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025112923-24565.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025112923-49553.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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