题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151656-63826.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151656-28678.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151656-48676.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151657-11283.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151657-43724.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151657-20999.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
试题分析:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151658-58848.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151659-57476.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151659-52871.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151659-67345.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151659-71997.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151700-42031.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151700-59681.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151700-57449.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151645-72498.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151645-45635.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151645-35504.png)
(Ⅰ)求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151646-32650.png)
(Ⅱ)过点
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151646-38192.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151646-74244.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151646-22407.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151647-54624.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151647-58720.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151647-83538.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151634-95277.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151635-51267.png)
(I)求椭圆C的方程;
(II)若斜率为k的直线过点M(2,0),且与椭圆C相交于A, B两点.试探讨k为何值时,三角形OAB为直角三角形.
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151620-68775.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151620-45812.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151620-66108.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151620-45812.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151620-20655.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151620-46562.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151620-50857.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151620-18097.png)
(Ⅰ)设直线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151620-20655.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151620-20284.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151620-84033.png)
(Ⅱ)求线段
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151620-48431.png)
(Ⅲ)当点
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151620-66108.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151620-48431.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151605-60100.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151605-63759.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151605-25132.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151605-47456.png)
(1)求椭圆C的方程;(2)求
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151606-25046.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151554-57404.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151554-40894.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151555-79865.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151555-55531.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151555-55531.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151555-16606.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151555-55531.png)
(1)求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151555-43493.png)
(2)若圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151555-55531.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151556-71415.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023151555-55531.png)
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