对于解析几何大题,大多数考生往往感到很头疼,要么是有思路却被繁杂的计算搞得焦头烂额;要么是找不到思路无法打开突破口而直接放弃.本人结合自己的学习实践与体会,给出解决这一难题的有效途径:尝试一题多解,将高中数学中的常规思想方法贯穿其中.下面我就以一道高考题为例,谈谈我的学习体会.题目过坐标原点O的直线交椭圆W:x22+y2=1于P、A两点,其中P在第一象限,过P作x轴的垂线,垂足为C,连结AC并延长交椭圆W于B,求 For analytic geometry problems, most candidates are often feel a headache, either thinking is cumbersome calculations made burdensome; either can not find ideas can not open the breakthrough and directly to give up. I combined my own learning and experience to give An effective way to solve this problem: try a solution to many problems, high school mathematics in the common way of thinking through them. Now I will take a college entrance examination questions, for example, to talk about my learning experience. Intersection oval W: x22 + y2 = 1 in P, A two points, where P in the first quadrant, over the P axis for the x-axis, vertical foot C, AC and extend the intersection of elliptical W in B, seeking