The complex number z = j(-1+j)⁶ / (1+j)² can be expressed in the form C = Reʲ⌀.
The values of R and ⌀ are given by : -
(a) R= 2,⌀ = -π/2
(b) R= 4,⌀ = -π/2
(c) R= 2,⌀ = π/2
(d) R = 4,⌀ = π/2