A bode diagram for a system is shown below What is the gain

A bode diagram for a system is shown below. What is the gain margin for this system? (in additional to a numerical value, indicate on the plot) What is the phase margin for this system? (In addition to a numerical value, indicate on the plot)

Solution

gain cross over frequency= 0.5 rad/sec

phase cross over frequency= 3 rad/sec

gain margin= about +25 dB

phase margin= about 70 degrees