题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154934-37941.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154934-56377.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154934-56377.png)
A.
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154935-16153.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154935-39834.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154935-65006.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154935-21966.png)
答案
解析
试题分析:根据已知条件,取直线的斜率为1.右焦点F(2,0).直线AB的方程为y=x-2.联立方程组
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154936-12505.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154936-33790.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154936-44124.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154936-17276.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154936-84271.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154937-24322.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154937-20622.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154937-16520.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154937-16520.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154937-15211.png)
点评:特值法是求解选择题和填空题的有效方法.
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154927-68381.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154927-24241.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154928-77333.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154928-36104.png)
(1)请列出有序数组
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154928-21876.png)
(2)记“使得
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154928-98643.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154928-21876.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154910-40560.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154910-21512.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154911-44533.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154911-50057.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154911-93135.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154911-44533.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154911-85574.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154912-21341.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154912-33059.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154912-47141.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154912-14271.png)
(I)求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154911-44533.png)
(Ⅱ)求线段
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154912-67759.png)
(Ⅲ)当线段
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154912-67759.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154911-44533.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154913-84957.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154913-63453.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154913-11351.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154913-84957.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154904-99598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154904-53548.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154904-44014.png)
A.两个交点 | B.一个交点 | C.没有交点 | D.无法判断 |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154856-51713.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154856-65125.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154856-76444.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154856-13003.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154856-36518.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154856-52908.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154856-65125.png)
(Ⅰ)求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154856-65125.png)
(Ⅱ)已知直线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154857-97967.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154856-65125.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154857-97967.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154856-65125.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154849-43055.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154849-46406.png)
(Ⅰ)求此双曲线的渐近线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154849-80595.png)
(Ⅱ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154849-10603.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154849-80668.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154849-80595.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154850-41680.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154850-13617.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023154850-30682.png)
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