题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225822-38752.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225822-50703.png)
A.5![]() | B.10![]() | C.15![]() | D.20![]() |
答案
解析
试题分析:由于圆
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225823-65394.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225822-50703.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225823-68564.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225824-99022.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225824-46363.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225823-34420.png)
点评:主要是考查了直线与圆的位置关系的运用,属于基础题。
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225814-42254.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225814-84853.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225814-32906.png)
(Ⅰ)求出椭圆C的方程;
(Ⅱ) 若直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225815-64262.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225815-82753.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225809-57693.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225809-65074.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225809-47496.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225810-49865.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225810-19658.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225809-47496.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225755-60438.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225755-93513.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225756-67984.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225756-50353.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225756-92170.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225756-72249.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225757-50236.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225757-51549.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225757-33591.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225756-50353.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225757-39970.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225756-50353.png)
(3)求实数
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225757-51549.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225748-24907.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225749-26181.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225749-73531.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225749-12338.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225750-54489.png)
A.3 | B.5 | C.7 | D.9 |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225736-31499.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225736-73865.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225736-97146.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225737-44036.png)
(Ⅰ)求圆C的方程;(Ⅱ)若直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225737-69260.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225736-31499.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022225737-55170.png)
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