The transfer function of a closed-loop system is Fk(s) =K(s + 3)1 + s s2 + s3. This system is

The transfer function of a closed-loop system is Fk(s) =K(s + 3)1 + s

1.	The transfer function of a closed-loop system is Fk(s) =K(s + 3)1 + s s2 + s3. This system is
A.	stable
B.	unstable
C.	marginally stable
D.	conditionally stable
Answer» C. marginally stable

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The transfer function of a closed-loop system is Fk(s) =K(s + 3)1 + s s2 + s3. This system is

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