I've been having problems with this question - it's simple enough to solve, just that I don't seem to get the provided answers (which I suspect might be wrong).
Find the roots of (z - 2i)^5 = 1
The answers given are
root(3/2) +/- 3/2 i,
root(3) - 3/2 i
[root(3/2) - 3] + 3i
Yes apparently there are only 4 roots given, is there something seriously wrong with the answers provided?