题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113212-64656.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113212-22430.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113212-89601.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113212-88470.png)
解析
试题分析:∵
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113212-64656.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113212-22430.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113213-64242.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113213-97375.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113213-82400.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113213-48115.png)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113214-89446.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113127-64585.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113127-29051.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113127-24028.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113127-20290.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113128-96174.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113111-25393.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113111-95249.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113112-96744.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113112-56480.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113112-12063.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113112-89923.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113113-14537.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113113-83543.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113100-90631.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113100-10547.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113100-16889.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113100-94549.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025113101-25474.jpg)
(Ⅰ)求直线l和抛物线C的方程;
(Ⅱ)抛物线上一动点P从A到B运动时,
求△ABP面积最大值.
![](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)
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