题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130021-31630.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130022-73113.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130022-69147.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130022-65476.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130022-36341.gif)
且
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130023-58436.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130023-47075.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130023-87162.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130023-92993.gif)
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130024-26879.gif)
因为
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130024-95473.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130024-70419.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130024-58226.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130025-94924.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130025-57836.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130025-58892.gif)
所以
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130025-56247.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130023-92993.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130026-56873.gif)
核心考点
举一反三
已知点
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130008-24980.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130008-16403.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130008-37338.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130009-68549.gif)
(Ⅰ)求点P的轨迹方程;
(Ⅱ)过点C的直线m与点P的轨迹交于两点
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130009-24704.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130009-80931.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130009-59551.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130010-54934.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130010-16096.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130010-85920.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130010-96932.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130003-73173.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022130004-64567.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125954-45405.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125954-56584.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125955-76641.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125955-57308.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125955-80908.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125955-34731.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125942-40700.gif)
上顶点为B,过F,B,C三点作
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125942-91529.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125942-37614.gif)
(1) 若椭圆的离心率
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125942-41610.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125942-91529.gif)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125942-91529.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125942-68430.gif)
设
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125900-93677.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125900-46396.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125900-41600.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125900-73506.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125901-71864.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125901-37767.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125901-93411.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125901-71864.gif)
(1) 若对任意
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125901-15166.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125901-46199.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125901-93411.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125901-52051.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125902-37450.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125902-14022.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125902-43674.gif)
(2) 若点
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125902-96935.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125902-31456.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125901-93411.gif)
(3) 对(1)中点
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125902-14022.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125902-43674.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125903-32742.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125903-69469.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125902-43674.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125903-71157.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125903-67389.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125904-37562.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022125903-67389.gif)
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