Qs involving a/b+b/a+1=0 COMPLEX NUMBERS (1 Viewer)

[gamja]

Let a, b be complex numbers that satisfy

i) Prove that for n≥1, by using Mathematical Induction.
- I proved true for n=1 and assumed true for n=k, just need help with Proving true for n=k+1

ii) Show that , if n is not a multiple of 3.

Thanks in advance for help!