CCNY PHYS 45400 - Spring 2026
Feb 11, 2025

Name _________________________

    Given: $r+r' = 2a$

  1. Use i.47 (pythagorean Theorem) to express $r’$ in terms of $a$, $e$, $r$, and $θ$.

  2. Use algebra, trig and the given, to find the polar representation of the ellipse, that means a function: $r(θ)$.