题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173442-77308.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173442-20599.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173442-11571.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173443-29114.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173444-92964.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173444-55533.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173444-63641.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173444-93133.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173437-98240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173437-44273.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173438-64740.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173438-16248.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173424-56046.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173424-52924.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173424-59070.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173424-17501.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173424-93357.png)
(1)求椭圆C的方程;
(2) 过点
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173425-81024.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173425-53362.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173425-54563.png)
点,记
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173425-87104.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173426-93334.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173426-27986.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173426-17519.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173425-53362.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173426-59609.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173426-90343.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173412-50570.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173412-71919.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173412-36783.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173413-69600.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173413-99143.png)
(Ⅰ)求椭圆C的方程;
(Ⅱ)过点
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173413-67567.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173413-98431.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173414-89610.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173414-12368.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173414-23639.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173414-22554.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173415-48394.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173413-98431.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173415-80890.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173402-60716.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173403-26918.png)
(1)求P点坐标;
(2)求证直线AB的斜率为定值;
(3)求△PAB面积的最大值。
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173403-46833.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173353-32034.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173354-57262.png)
(1)求椭圆E的方程;
(2)过点C(—1,0),斜率为k的动直线与椭圆E相交于A、B两点,请问x轴上是否存在点M,使
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023173354-22728.png)
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