题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230234-35497.png)
答案
解析
试题分析:依题意知,焦点
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230234-38535.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230234-89056.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230234-82238.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230235-28939.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230235-67652.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230235-88401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230236-35694.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230236-67559.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230236-34617.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230236-30636.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230237-68633.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230237-34798.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230237-83031.png)
联立
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230237-46461.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230238-97839.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230238-96168.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230238-45504.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230238-39060.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230239-85092.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230239-95904.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230239-61087.jpg)
核心考点
试题【过抛物线x2=2py(p>0)的焦点作斜率为1的直线与该抛物线交于A,B两点,A,B在x轴上的正射影分别为D,C.若梯形ABCD的面积为12,则P="_____】;主要考察你对曲线与方程的应用等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230223-66856.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230224-11196.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230224-91318.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230224-38790.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230224-80738.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230225-84366.png)
A.![]() | B.2 | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230214-81796.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230214-54066.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230214-66967.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230157-68441.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230157-56886.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230158-48918.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230158-40152.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230158-89089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230158-89089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230158-48918.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230158-37484.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230158-37484.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230159-54470.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230159-36002.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230158-89089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230159-11681.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230157-56886.png)
(I)求抛物线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230200-92823.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230158-89089.png)
( II)已知直线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230200-18240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230200-15277.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230200-92823.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230201-83721.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230200-15277.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230158-48918.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230201-54995.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230201-49397.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230201-44337.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230145-18297.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230145-81166.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230146-64658.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230146-32628.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230146-79104.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230146-79104.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230146-64658.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230147-41902.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230147-41902.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230147-95046.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230147-46869.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230146-79104.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230147-83970.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230145-81166.png)
(I)求抛物线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230148-95775.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230146-79104.png)
(II)过
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230145-81166.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230148-13082.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230148-87886.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230148-95775.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230149-73162.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230149-86700.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025230127-17325.png)
A.4 | B.3 | C.2 | D.1 |
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