Question: A unity feedback system has a loop transfer function: L ( s ) = G c ( s ) G ( s ) = K

A unity feedback system has a loop transfer function:
L(s)=Gc(s)G(s)=K-1+s
where K=12 and =1. the Nyquist plot for Gc(j)G(j) is shown. Determine whether the system is stable by using the Nyquist criterion.
A unity feedback system has a loop transfer

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