Consider a feedback system with the characteristic equation \(1 + K\frac{1}{{s\left( {s + 1} \right)\left( {s + 2} \right)}} = 0\;\)for root locus. The angles of asymptotes ϕA and the centroid of the asymptotes –σA, are respectively

Consider a feedback system with the characteristic equation \(1 + K\fr

1.	Consider a feedback system with the characteristic equation \(1 + K\frac{1}{{s\left( {s + 1} \right)\left( {s + 2} \right)}} = 0\;\)for root locus. The angles of asymptotes ϕA and the centroid of the asymptotes –σA, are respectively
A.	60°, 120°, 180° and -1
B.	45°, 90°, 300° and 0
C.	60°, 180°, 300° and -1
D.	45°, 90°, 180° and 0
Answer» D. 45°, 90°, 180° and 0

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Consider a feedback system with the characteristic equation \(1 + K\frac{1}{{s\left( {s + 1} \right)\left( {s + 2} \right)}} = 0\;\)for root locus. The angles of asymptotes ϕA and the centroid of the asymptotes –σA, are respectively

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