Given the following control system shown in Fig-1 D (s) 1 10 s + 1 S 08 Fig-1 a) For proportional controller, De(s)= K, Find the range of K, for which the system is stable. b) Determine the system type and the steady state error for PD controller i.e De(s)= Kp+Kd S c) Determine the system type and the steady state error for PI controller i.e De(s)= Kp + K;/s