Solution 3.8.2.3 Let Z 1 = R 1 and Z 2 = R 2 C 2 s R 2 + 1 C 2 s = R 2 R 2 C 2 s +1 Then V o (s)=  Z 2 Z 1 + Z 2  V i ;; Thus V o (s) V i (s) = R 2 R 2 C 2 s+1 R 2 R 2 C 2 s+1 + R 1 R 2 C 2 s +1 R 2 C 2 s +1 = R 2 R 1 R 2 C 2 s + R 1 + R 2 = 1 R 1 C 2 1 s + R 1 +R 2 R 1 R 2 C 2 : 1