This is my attempt: The Op amp is ideal I know V1=V2 and V3=V_out because op amp is ideal. 1: (V_in-V1)/R1 + (V_out-V1)/(1/jωC1) = 0 2: (V3-V1)/R2 = 0 3: (V2-V3)/R2 + (0-V3)/(1/jωC2) = 0 Am I doing right so far? How shall I continue now? Should I assume R1=R2=1Ω and C1=C2=1, then find V_out/V_in?