题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154534-74089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154535-70745.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154535-82227.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154535-60448.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154534-74089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154535-87428.png)
答案
解析
试题分析:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154535-87428.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154535-22076.png)
点评:椭圆上的点到两焦点的距离之和等于
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154536-26051.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154527-44650.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154527-28701.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154527-35148.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154527-19935.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154528-22717.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154528-51158.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154528-45784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154528-53033.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154529-24757.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154529-97909.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154529-42853.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154527-28701.png)
已知椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154520-29857.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154521-88843.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154521-52806.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154521-36537.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154521-89858.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154522-97897.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154521-36537.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154521-89858.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154521-52806.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154522-22152.png)
(1)求抛物线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154521-89858.png)
(2)求线段
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154522-27926.png)
椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154507-98504.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154507-16861.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154507-57899.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154507-84801.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154508-21183.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154508-28434.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154508-72108.png)
(1)求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154507-98504.png)
(2)过椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154507-98504.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154507-57899.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154507-84801.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154508-74031.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154509-36999.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154509-67468.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154509-65046.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154509-17352.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154510-25300.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154507-84801.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154510-44958.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154510-15167.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154510-33363.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154511-90562.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154511-86283.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154511-13031.png)
①求点
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154509-17352.png)
②试判断直线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154511-57388.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154512-89223.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154512-15816.png)
已知椭圆C:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154500-97434.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154500-34416.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154500-80678.png)
(Ⅰ)求椭圆方程;
(Ⅱ)设P为椭圆上一点,A为左顶点,F为椭圆的右焦点,求
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154500-52201.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154453-23808.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154453-14258.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154453-43043.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154453-25194.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154454-12513.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154454-20335.png)
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