... k= 17. 564411.G1=tf([ 17. 564411],[1 2]);>> G2=tf([1],conv([0.5 1],[1 1]));>> H1=tf([1],[0.005 1]);>> G12=series(G1,G2);>> wk=feedback(G12,H1)Transfer function: 0.0 878 2 ... wk=feedback(G12,H1)Transfer function: 0.0 878 2 s + 17. 56 0.0025 s^4 + 0.5125 s^3 + 2.52 s^2 + 4.01 s + 19.56>> wh=series(G12,H1)Transfer function: 17. 56 0.0025 s^4 + 0.5125 s^3 + 2.52 s^2 ... Wk=feedback(G123,1)Transfer function:2 s^4 + 13 s^3 + 33 s^2 + 30 s s^6 + 12 s^5 + 62 s^4 + 193 s^3 + 356 s^2 + 270 sG1X YG2H1G3>> Wh=series(G123,1)Transfer function:2 s^4 + 13 s^3 + 33 s^2 + 30 s...