Below are six Cartesian equations and four polar equations. For each polar equation, identify the corresponding Cartesian equation:
A. (x - 1)² + (y + 1)² = 2
B. y = 1
C. x² + y = 4
D. x = 1
E. x² = y
F. x + (y - 4)⁷ = 2
1. r = 3 sin(θ)
2. r cos(θ) = 1
3. r = csc(θ)
4. r = 2