题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195602-94512.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195603-54762.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195603-12508.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195604-67820.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195602-94512.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195603-12508.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195604-62514.gif)
(Ⅰ)求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195603-54762.gif)
(Ⅱ)如果
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195604-36700.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195603-54762.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195605-69094.jpg)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195605-99314.jpg)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195549-39209.gif)
设椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195550-25982.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195550-37548.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195550-58765.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195550-69258.gif)
(1) 若
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195550-58765.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195550-25982.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195550-25982.gif)
(2) 设
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195551-50430.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195551-77751.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195550-25982.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195550-58765.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195551-32860.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195551-71842.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195552-27129.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195552-94290.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195550-58765.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195550-25982.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195550-58765.gif)
(I) 求考察区域边界曲线的方程:
(II) 如图4所示,设线段
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195543-80622.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195543-92752.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195536-33585.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195536-10677.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195536-25724.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195537-45887.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195537-95802.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195537-70103.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195538-33003.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195538-77333.gif)
A.1 | B.![]() | C.![]() | D.2 |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195528-60357.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195528-97816.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195528-58459.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195529-79464.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195529-72301.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195529-29754.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195530-27803.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023195525-64862.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
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