# Stability Theory – 1

1. The loop transfer function of a feedback control system is given by

$\dpi{100} G(s) H(s) = k/{s (s + 2) (s^2 + 2s + 2)}$

Number of asymptotes of its root loci is :

(a) 1
(b) 2
(c) 3
(d) 4