题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163335-64130.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163335-90973.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163336-80314.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163336-44761.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163336-61429.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163336-47280.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163337-10048.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163336-47280.png)
(Ⅰ)求椭圆的方程;
(Ⅱ)若直线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163337-33696.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163337-15785.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163337-65356.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163337-69055.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163338-48046.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163338-31425.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163338-87732.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163338-87732.png)
(Ⅲ)求点
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163338-49964.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163338-48046.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163339-69075.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163339-60619.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163339-35246.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163339-11629.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163339-69075.png)
(2)本小题的求解要注意利用平面几何的性质得到
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163340-77601.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163340-63577.png)
(3) 点
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163338-49964.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163338-48046.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163340-49976.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163340-60251.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163340-84986.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163341-11447.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163341-83184.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163341-19176.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163341-99024.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163342-80019.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163341-99024.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163339-11629.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163339-69075.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163342-14153.png)
(Ⅱ)设
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163342-46743.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163342-44149.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163340-77601.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163343-95127.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163343-27057.png)
设
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163343-78911.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163340-63577.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163343-56556.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163343-64338.png)
又
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163337-10048.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163344-78960.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163344-80253.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163339-60619.png)
(Ⅲ)点
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163338-49964.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163338-48046.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163340-49976.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163340-60251.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163340-84986.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163341-11447.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163341-83184.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163341-19176.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163341-99024.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163342-80019.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163339-35246.png)
核心考点
试题【已知椭圆:的右焦点与抛物线的焦点相同,且的离心率,又为椭圆的左右顶点,其上任一点(异于).(Ⅰ)求椭圆的方程;(Ⅱ)若直线交直线于点,过作直线的垂线交轴于点,求】;主要考察你对椭圆的定义与方程等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163327-39332.png)
(1)求圆心轨迹的参数方程
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163327-79678.png)
(2)点
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163327-95713.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163327-79678.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163328-27552.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163320-43977.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163320-89564.png)
(1) 写出曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163320-43977.png)
(2)若把
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163320-43977.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163321-63289.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163321-54682.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163321-54682.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163258-77134.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163258-12598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163258-67374.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163259-37870.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163259-53261.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163259-99594.png)
⑴当圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163259-53261.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163259-28639.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163300-28182.png)
⑵当圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163259-53261.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163300-98179.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163259-53261.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163300-69135.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163254-29178.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163254-39330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163254-65960.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163254-23997.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163241-58715.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163241-46469.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163241-56477.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163242-66255.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163242-13417.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163242-64003.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163242-45093.png)
(1)求椭圆的离心率
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163242-45093.png)
(2)若直线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163242-66255.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163242-46706.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163242-45093.png)
(3)是否存在这样的
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163242-45093.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163242-13417.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163242-66255.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163241-58715.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023163242-45093.png)
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