The open-loop DC gain of a unity negative feedback system with closed-loop transfer function s + 4 is _______.s2 + 7s + 13

The open-loop DC gain of a unity negative feedback system with closed-

1.	The open-loop DC gain of a unity negative feedback system with closed-loop transfer function s + 4 is _______.s2 + 7s + 13
A.	9 / 4
B.	1 / 9
C.	4 / 5
D.	4 / 9
Answer» E.

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The open-loop DC gain of a unity negative feedback system with closed-loop transfer function s + 4 is _______.s2 + 7s + 13

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