Hi again Forum!

I am struggling on this problem as of right now and would like some pointers.

Recall that a Mobius transformation *f *has an equation of the form *f*(z) = az+b/cz+d, where a, b, c, and d are complex numbers.

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

I have tried multiplying different combinations of the functions to try to get the same base equation as f(-i). It hasn't worked, so maybe I am looking at this problem from the wrong angle. Thanks again everyone for helping students like us!

BasicMaths

BasicMaths Feb 7, 2020