论文部分内容阅读
本文介绍圆锥曲线的几个有趣轨迹,供同学们学习参考.轨迹1 设A,B是椭圆x2/a2+y2/b2=1(a>b >0)的左、右顶点,垂直于x轴的直线与椭圆相交于P,Q两点,则AP与BQ交点的轨迹是 x2/a2-y2/b2=1(y≠0).
This article introduces several interesting trajectories of conic curves for students to learn. Track 1 Let A and B be the left and right vertices of the ellipse x2/a2+y2/b2=1 (a>b >0). The line perpendicular to the x axis intersects the ellipse at P and Q. Then AP and BQ The trajectory of the intersection point is x2/a2-y2/b2=1(y≠0).