题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233930-36934.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233931-26851.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233931-20192.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233931-33815.png)
A.5 | B.![]() | C.2 | D.![]() |
答案
解析
试题分析:双曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233930-36934.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233931-93965.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233932-94765.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233932-57898.png)
与圆
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233931-26851.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233931-20192.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233932-42447.png)
点评:当焦点在x轴上时,双曲线的渐近线为
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233932-19786.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233933-24191.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233923-94878.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233923-56054.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233924-32869.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233912-73225.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233912-82360.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233912-51792.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233913-50246.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233913-66896.png)
(Ⅰ)求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233914-42031.png)
(Ⅱ)过原点的直线l与椭圆C交于A、B两点,椭圆C上一点M满足
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233914-43006.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233914-30839.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233901-98415.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233901-43603.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233901-18899.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233901-98415.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233901-43603.png)
![]() | ![]() | ![]() | ![]() | ![]() |
![]() | ![]() | ![]() | ![]() | ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233901-98415.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233901-43603.png)
(Ⅱ)设直线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233902-35079.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233901-43603.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233902-68530.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233902-33515.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233903-84911.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233903-90553.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233903-82609.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233902-33515.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233849-61634.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233850-82695.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233850-18990.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233849-61634.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233850-51439.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233851-76048.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233851-83707.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233851-22975.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233850-18990.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233851-19606.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233852-74427.png)
(Ⅰ)求动点
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233852-62682.png)
(Ⅱ)设点
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233852-18256.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233852-89895.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233842-18998.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233843-63601.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233843-55939.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233843-65608.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233843-66671.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233844-15815.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233844-98570.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025233844-51694.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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