题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181256-19808.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181256-65220.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181257-61770.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181257-20229.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181257-29173.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181257-40303.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181258-80432.jpg)
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181258-97299.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181258-10690.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181259-12788.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181259-95960.gif)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181256-26212.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181256-55166.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181257-14700.png)
已知抛物线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181202-97345.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181202-63547.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181202-40887.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181202-93381.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181203-68977.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181203-30281.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181203-20835.gif)
(Ⅰ)证明:点F在直线BD上;
(Ⅱ)设
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181203-79573.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181204-50727.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181150-24122.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181150-35875.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
(12分)已知抛物线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181118-25314.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181119-25864.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181114-31140.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181114-76531.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181115-32801.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025181114-76531.gif)
A.(-2,1) | B.(1,2) | C.(2,1) | D.(-1,2) |
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