题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165644-71180.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165644-25918.png)
最小值 ▲ .
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165644-90501.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165645-85288.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165645-56118.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165645-36742.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165645-21089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165646-65338.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165646-87460.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165646-64426.png)
所以
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165646-98972.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165646-46225.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165636-70196.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165637-70671.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165637-66612.png)
(1)若抛物线的焦点F在椭圆的顶点上,求椭圆和抛物线的方程;
(II)若抛物
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165637-25872.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165637-67588.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165638-33184.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165626-17126.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165626-81844.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165626-21854.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165627-29385.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165627-74788.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165627-99415.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165627-42223.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165628-62367.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165628-11225.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165628-28669.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165628-44690.png)
(1) 求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165628-11225.png)
(2) 是否存在过点
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165629-10018.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165629-42607.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165628-11225.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165629-66934.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165629-92042.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165629-42607.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165623-49114.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165613-49827.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165613-83221.png)
A.1 | B.2 | C.3 | D.4 |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165608-95350.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165608-42650.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165608-15889.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165608-61806.png)
且
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165608-42650.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165608-61806.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165609-11904.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165609-57759.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023165609-12443.png)
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