1) Consider a negative unity feedback system with a variable gain K cascaded with a plant G(s) in the forward path. If the plant transfer function is given by: s2 + 4 G(s) (s+4)[(8+3)² + 4] Which of these points are possible closed loop poles? -6 + 0j -2+ 1.96j O -3+ 0j -2 + 0.96j

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1) Consider a negative unity feedback
system with a variable gain K cascaded
with a plant G(s) in the forward path. If the
plant transfer function is given by:
s2 + 4
G(s) =
s+ 4)[(s+3)² + 4]
Which of these points are possible closed loop
poles?
-6 + 0j
-2 + 1.96j
-3 + 0j
-2 + 0.96j
Transcribed Image Text:1) Consider a negative unity feedback system with a variable gain K cascaded with a plant G(s) in the forward path. If the plant transfer function is given by: s2 + 4 G(s) = s+ 4)[(s+3)² + 4] Which of these points are possible closed loop poles? -6 + 0j -2 + 1.96j -3 + 0j -2 + 0.96j
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