Question: A feedback control system has the open - loop transfer function, GOL ( s ) = 0 . 5 Kce 3 s / ( 1

A feedback control system has the open-loop transfer function, GOL(s)=0.5Kce3s/(10s +1). Determine the values of Kc for which the closed-loop system is stable using two approaches: (a) An approximate analysis using a 1/1 Pad approximation for e3s and the direct substitution method. (b) An exact analysis based on substitution of s = j.(Hint: Recall Eulers identity.)

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