Draw the block diagram for the system, showing all transfer functions obtained in part (b), and simplify it to obtain the global transfer function for H2(s) to the input variables f1(t),f2(t),f3(t), and fR(t) obtain F1H2,F2H2,F3H2,FrH2 from this equation: H2=(2+1)(1+1)K1K2[F1+F2]+(2+1)K3[F3Fr]