Consider a unity feedback system with

G(s) = K s(s + 5)(s + 10)' where K is set equal to 100 in order to achieve a spec- ified K,, = 2. We wish to add a lead-lag compensator (s + 0.15)(s + 0.7) Ge(s) = (s + 0.015)(s +7) Show that the gain margin of the compensated sys- tem is G.M. = 28.6 dB and that the phase margin is P.M. = 75.4