Q4- A LTI system has the o/p y(n)= {1,-1,1,-1), and impulse response equal h(n)= 5(n)+ (n-2). Find the input x(n).

Q2) 1) The transfer function of a system is given as 81/ (s2 + 16s + 81). Find the undamped natural frequency, damping ratio, and peak time for a unit step input. a) 9, 0.889, 0.762 b) 9, 0.559, 0.762 c) 9, 0.889, 0.187 d) 9, 0.667, 0.187

the question is in the photo.

For a given system with transfer function T(s), initial conditions are (a) included in T(s) (b) inputs to T(s) (c) feedback on T(s) (d) ignored Show work detailing how you got to your answer