a. A system has the following frequency response:

What is the change in gain required so that the system's gain margin is 20 db? b. For the magnitude Bode plot below, Obtain the transfer function for the log amplitude curve shown below. (Hint: since you are only given the asymptotes for the Bode plot, you do not have to consider the damping ratio terms in any second order term that may be present).

c. Draw the phase plot curve for the function in problem 4(b).