题目
题型:不详难度:来源:
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答案
解析
试题分析:依题意,椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108021048-26599.png)
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核心考点
试题【在直角坐标系中,椭圆的参数方程为(为参数,).在极坐标系(与直角坐标系取相同的长度单位,且以原点为极点,以轴正半轴为极轴)中,直线的极坐标方程为,若直线与轴、轴】;主要考察你对极坐标与直角坐标等知识点的理解。[详细]
举一反三
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(1)写出直线l的参数方程,并把圆C的方程化为直角坐标方程;
(2)设l与圆C相交于两点A、B,求点P到A、B两点的距离之积.
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