Transfer function problem 1.7

Ask
The closed loop transfer function of a control system is given as $T(s)= \frac{s-5}{(s+2)(s+3)}$.This is
(a) an unstable system
(b) an uncontrollable system
(c) a minimum phase system
(d) a non-minimum phase system

Answer is ( d )
Concept
All poles are on right side.But, the zero is on the right half zero.Hence,its a non-minimum phase system

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