Question
7. Consider a unity-gain feedback control system whose open-loop transfer function is as +1 G(s) = s2 With the value of 'a' set for a phase-margin of ?, the value of unit-4 K(s + 1)(s3 + as2 + 2s + 1) impulse response of the open-loop system at t = 1 second is equal to
Answer: Option C
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