题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051246-11211.gif)
(坐标系与参数方程) 在极坐
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051247-40484.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051247-46983.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051247-40032.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051247-37137.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051248-35118.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051248-95921.gif)
解析
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051238-93226.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051238-83867.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051239-79051.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051239-74457.gif)
的交点为A,B,,则
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051239-54064.gif)
(选修4-4:坐标系与参数方程)
已知直线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051226-77468.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051227-94107.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051227-71850.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051227-18452.gif)
(1)求直线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051226-77468.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051226-77468.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051227-89967.gif)
已知圆
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051221-18546.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051221-26749.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051221-32436.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051222-59983.gif)
(Ⅰ)求过极点
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051222-98699.gif)
(Ⅱ)已知直线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051222-38298.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051222-98699.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051222-20938.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051221-18546.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051222-38298.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051215-58463.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051215-73050.gif)
则
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051216-91487.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051216-81457.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051210-77117.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051211-87591.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051211-87606.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051211-73202.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051212-96010.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108051212-51444.gif)
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