Given the second-order digital-filter transfer function

Figure p2.8-2

Figure p2. 8-1

2z-2.4z+0.72 z - 1.4z +0.98 (a) Find the coefficients of the 3D structure of Fig. P2.8-1 such that D(z) is realized. (b) Find the coefficients of the ID structure of Fig. P2.8-1 such that D(z) is realized. (c) Find the coefficients of the IX structure of Fig. P2.8-2 such that D(z) is realized. The coefficients are identified in Problem 2.8-2. (d) Use MATLAB to verify the partial-fraction expansions in part (c). (e) Verify the results in part (c) using Mason's gain formula. D(z) =