MathDB
Putnam 1940 A4

Source: Putnam 1940

February 22, 2022
Putnamconicsparabola

Problem Statement

Let pp be a real constant. The parabola y2=āˆ’4pxy^2=-4px rolls without slipping around the parabola y2=4pxy^2=4px. Find the equation of the locus of the vertex of the rolling parabola.