Trig - polar equation to rectangular

Question

r = 3(1-sin theta) to rectangular

Answer 1

r = 3(1 - sin θ)

r = 3 - 3 sin θ

r² = 3r - 3r sin θ

r² = 3r - 3y

x² + y² = 3√(x² + y²) - 3y

Answer 2

r=3-3sinθ This is rectangular. Polar has cis (cos+sin).