Question: Problem 4 . A unity feedback control system has the following open - loop transfer function, G ( s ) = K ( s 2

Problem 4. A unity feedback control system has the following open-loop transfer function,
G(s)=K(s2-2s+5)s2+7s+10
(a) Write the range of gain K for which the closed loop system is stable.
(b) Estimate the period of oscillation of the time response when the system is marginally stable.
Problem 4 . A unity feedback control system has

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