AP2.2 A system has a block diagram as shown in Figure AP2.2. Determine the transfer function

Y2(s) T(s) = R(s) It is desired to decouple Y2(s) from R (s) by obtain- ing T(s) = 0. Select G5 (s) in terms of the other G;(s) H(s) R(s) G(s) G5(s) G(s) Y(s G6(s) R(s) G3(5) G4(s) Y(s H(s) FIGURE AP2.2 Interacting control system. to achieve decoupling.