For the process defined by the following transfer function: e-2.7s G(S) = 5.4 s +1 a) Obtain the process discrete transfer function Gp(z) (include the ZOH) in simplified polynomial form. Use a sampling time T=1 sec. b) Obtain the transfer function for Deadbeat controller Gc(z) in a simplified polynomial form. c) Obtain the transfer function for Dahlin controller Gc(z) in a simplified polynomial form. The expression must be in function of the parameter Tao