Please do parts 4e, 4f, 4g. This is x(t): e -0.4t (0.2 cos(1.96t) +0.0408 sin(1.96t)) (4e) Use MATLAB "plot" command to plot the initial state response x(t) obtained in (4d) on a graph versus time t. (5%) (4f) Evaluate the performance of the system based on steady-state error, maximum overshoot, oscillation frequency, peak time, rise time, and settling time. (5%) (4g) Assume you do not like the performance of the current system because it is too slow or too oscillatory, What shall you do to change the physical parameters assuming that you are only allowed to redesign the damper by changing the friction coefficient B? Plot the response x(t) of your modified design. (5%)