(a) Determine the transfer function Hdirect(z) of the direct form secondorder IIR system given in Fig. 7.32. (b) Determine the transfer function Hcoupled(z) of the coupled form second-order IIR system...

(b) Determine the transfer function Hcoupled(z) of the coupled form second-order IIR system given in Fig. 7.34.

(c) Compare Hdirect(z) and Hcoupled(z). How are these two systems the same? How are they different?