Answer:
The polar curve will be:
r(θ) = cos(θ)
where 0 ≤ θ ≤ 3*π/2
This means that the radius of the polar curve depends on the angle in that way, for example, when θ = 0, r = 1
when θ = π/2, r = 0
and so on, so this curve will draw something like an infinity symbol, where the last segment is missing.
