题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032305-24043.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032305-98721.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032305-12517.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032305-85115.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032305-66147.gif)
⑴求
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032305-98721.gif)
⑵是否存在斜率
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032305-98721.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032306-85528.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032305-98721.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032306-22446.jpg)
由
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032306-85528.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032306-54433.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032306-68737.gif)
所以不存在常数
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032305-98721.gif)
解析
核心考点
试题【.过点作斜率为的直线与双曲线有两个不同交点.⑴求的取值范围?⑵是否存在斜率,使得向量与双曲线的一条渐近线的方向向量平行.若存在,求出的值;若不存在,说明理由.】;主要考察你对曲线与方程的应用等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032257-45853.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032257-40935.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032258-24558.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032258-25135.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032258-82213.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032258-65666.gif)
(1)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032259-20198.gif)
(2)求
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032259-20198.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032248-77310.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032248-48126.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032249-94882.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032249-27945.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032249-55281.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032249-37631.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032249-14375.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032250-37422.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032250-76072.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032250-76072.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032250-42210.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032250-17384.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032250-29026.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032250-42210.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032250-76072.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032238-80829.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032239-57940.gif)
(1)设点
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032239-45743.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032239-84887.gif)
(2)如图,
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032239-22890.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032239-56000.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032240-10293.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032233-85052.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032234-85145.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032234-67755.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032228-29092.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032228-51223.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032229-80877.gif)
(1)求椭圆C的方程;
(2)设直线l与椭圆c交于A、B两点,坐标原点O到直线
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032229-41314.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032229-77055.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026032229-13824.gif)
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