1. The problem statement, all variables and given/known data H(e^jw) = (1-1.25e^(-jw))/(1-0.8e^(-jw)) Prove |H(e^jw)|^2 = G^2, and what is G Find Magnitude & Phase 2. Relevant equations H(e^jw) = (e^(jw)-1.25)/(e^(jw)-0.8) H(e^jw) = 1 - (0.45e^(-jw))/(1-0.8e^(-jw)) H(e^jw) = 1 - 0.45/(e^(jw)-0.8) 3. The attempt at a solution I don't know how to approch this question. I can rewrite H(e^jw) in 4 different formats, but none of which make me understand how to attempt to get the magnitude in the first place.