Question: The closed-loop transfer function of a feedback control system is given by C ( s ) R ( s ) = K s s 2

The closed-loop transfer function of a feedback control system is given by
$\frac{C (s)}{R (s)} = \frac{K s}{s^{2} + (3 + K) s + 2}$
Which one of the following diagrams represents the root locus diagram of the system for $K > 0$ ?

(a) (c) K K=0 K K = 0 K=0 K = 0

(a) (c) K K=0 K K = 0 K=0 K = 0 jo A jo K=-00 K=-00 ( O (b) (d) K K K=0 K=0 * K=0 * K = 0 jo jo K K O

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