Hand written solution required

Problem 2 Given a casual second-order process which follows the transfer function and initial inputs x[] = 1,x[1] = 2,x[2] = 1,1:[3] = 0,1:[4] = 3,x[5] = 2,1:[6] = no deodrfme. a) Calculate the noise-free output y[n], n E 6. b) Assuming the process H (a) is not known and only measured input and output samp in part a) are given, identify the process by applying the Least squares t and estim unlmown parameters of H (a). c) What can you conclude aer estimating the unknown parameters in part b)