The following transfer function G(s) is given below. The process has a lag of 1.6 minutes and pole of -1/3. Y(s) G(s) = X(s) 3e-1.6s 3s+1 Approximate the lag with the pole-zero 1/1 pade's approximation. Compare the difference in the results (with approximation and without approximation) for a unit step change, at time 3 minutes