two complex numbers: z and w are given by
z = 5.2 - 3.4j
w = 1.6 + 4.2j
(i) find z + w, zw and z/w.
find z - w, express this in polar form and plot it on an Argand Diagram.
Any workings for the first part will be greatly recieved, and any help for second will be a bonus