E7.16 A negative unity feedback system has a loop trans

fer function

= L(s) G(s)G(s) = Ke-sT s+1 where T = 0.1 s. Show that an approximation for the time delay is e-sT 2727 + S Using e-0.1s 20-s 20+s obtain the root locus for the system for K > 0. Determine the range of K for which the system is stable.