I'm not sure where to start with this question at all, some help would be appreciated
A point Z in an Argand diagram represents
By writing z + 1 as , find the modulus and argument of z+1.
Hmm, the editing has gone badly, it should be:
e^(itheta) in the first and
e^(0.5itheta)(e^(0.5itheta) + e^(-0.5itheta)) in the second.