Suppose that f is a Mobius transformation such that f(1)=i, f(i)=-1, and f(-1)=1. Find the value of f(-i).

3 answers

Isn't it just -1?
@Deven how might that be? I'm confused of the thought process necessary to get there.
@Jakob Sorry. I misunderstood it. I want to say the answer is 1 if you follow the pattern, and that i=-1, so -i = 1, but I'd wait for a teacher to help. Sorry if it didn't help.