# Stability Theory – 2

2. A unity feedback system has

$\dpi{100} G(s) = k/{s (s + 1) (s + 2)}$

In the root-locus, the break-away point occurs between :

(a) s = 0 and -1
(b) s = -1 and -∞
(c) s = -1 and -2
(d) s = -2 and -∞