A single-input single-output feedback system has forward transfer function G(s) and feedback transfer function H(s). It is given that |G(s)H(s)| < 1. Which of the following is true about the stability of the system?

It is not possible to say whether or not the system is stable from the information given

The system is stable if all zeros of G(s)H(s) are in left half of the s-plane

The system is stable if all poles of G(s)H(s) are in left half of the s-plane

A single-input single-output feedback system has forward transfer func

1.	A single-input single-output feedback system has forward transfer function G(s) and feedback transfer function H(s). It is given that \|G(s)H(s)\| < 1. Which of the following is true about the stability of the system?
A.	The system is always stable
B.	The system is stable if all zeros of G(s)H(s) are in left half of the s-plane
C.	The system is stable if all poles of G(s)H(s) are in left half of the s-plane
D.	It is not possible to say whether or not the system is stable from the information given
Answer» D. It is not possible to say whether or not the system is stable from the information given