Repeat Problem P7.22 for the loop transfer function Gc(s)G(s) of Problem P7.1(c). Problem P7.22 Determine the root

Question:

Repeat Problem P7.22 for the loop transfer function Gc(s)G(s) of Problem P7.1(c).
Problem P7.22
Determine the root sensitivity of the dominant roots of Problem P7.1(a) when K is set so that the damping ratio of the unperturbed roots is 0.707. Evaluate and compare the sensitivity as a function of the poles and zeros of Gc(s)G(s).