题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034044-35461.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034044-48899.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034044-31117.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034045-54764.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034045-76725.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034045-99151.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034045-66464.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034045-99151.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034045-91484.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034046-54471.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034046-91491.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034046-91491.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034045-91484.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034046-44423.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034046-90487.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034046-70065.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034046-91491.gif)
答案
(1)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034047-51099.gif)
(2)不存在
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034047-51099.gif)
(1)当
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034047-89213.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034047-98837.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034044-31117.gif)
(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034047-71872.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034044-31117.gif)
(3)当
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034047-79722.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034047-98837.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034044-31117.gif)
(4)当
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034048-80394.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034048-23022.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034044-31117.gif)
2)不存在
核心考点
试题【已知的两个顶点的坐标分别,且所在直线的斜率之积为,1)求顶点的轨迹.2)当时,记顶点的轨迹为,过点能否存在一条直线,使与曲线交于两点,且为线段的中点,若存在求直】;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/20191026/20191026034035-21969.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034035-80347.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034035-14061.gif)
(1)求点P的轨迹E的方程;
(2)已知E上定点K(-2,0)及动点M、N满足
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034036-65487.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034035-21969.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034027-11011.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034027-41000.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034027-86454.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034027-11011.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034028-42648.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034028-60065.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034028-97513.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034028-58041.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034029-48330.gif)
(1)求动点
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034028-58041.gif)
(2)已知点
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034029-20419.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034028-58041.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034029-80058.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034029-35949.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034029-66491.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034029-80058.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034029-35949.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034030-54912.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034021-77014.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034021-52477.gif)
A.焦点在x轴上的椭圆 | B.焦点在y轴上的椭圆 |
C.焦点在x轴上的双曲线 | D.焦点在y轴上的双曲线 |
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034017-24585.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034012-81376.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034012-92919.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034012-79934.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034013-32889.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026034012-79934.gif)
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