CP9.9 For the system in CP9.8, use the nichols function to obtain the Nichols chart and determine the phase margin and gain margin.

Data from in CP9.8 Consider the system represented in state variable

2 *0-0+00 ( = -1-18 20 y(t) = [ 6 0 ] x(t) +[0]u(t). Using the nyquist function, obtain the Nyquist plot.