Question

求与直线x-2y+1=0和2x-y+3=0距离相等的点的轨迹的方程.

Answer 1

设p点为(x,y) (|x-2y+1|)/根号(1+4) =(|2x-y+3|)/根号(1+4) (x-2y+1)=(2x-y+3)