Imaginary Numbers

z = (4 - 2i) - (-1 + 3i)

Algebraic form:
z = 5-5i

Exponential form:
z = 7.0710678 × ei (-45°)

Trigonometric form:
z = 7.0710678 × (cos (-45°) + i sin (-45°))

Polar form:
r = |z| = 7.07107
φ = arg z = -45° = -0.25π