z1 = 11 + 5i = √(11^2 + 5^2) (cos(arctan(5/11)) + i sin(arctan(5/11))z1 = √(121 + 25) (cos(arctan(5/11)) + i (sin(arctan(5/11))
z2 = 10 + 2i = √(10^2 + 2^2) (cos(arctan(2/10)) + i sin(arctan(2/10))z2 = √(100 + 4) (cos(arctan(1/5)) + i sin(arctan(1/5))
z1 = 11 + 5i = √(11^2 + 5^2) (cos(arctan(5/11)) + i sin(arctan(5/11))
z1 = √(121 + 25) (cos(arctan(5/11)) + i (sin(arctan(5/11))
z2 = 10 + 2i = √(10^2 + 2^2) (cos(arctan(2/10)) + i sin(arctan(2/10))
z2 = √(100 + 4) (cos(arctan(1/5)) + i sin(arctan(1/5))