A unity feedback control system is characterized by the open-loop transfer functionG(s)=10K(s+2)s3+3s2+10.The Nyquist path and the corresponding Nyquist plot of G(s) are shown in the figures below.If 0<K<1, then the number of poles of the closed-loop transfer function that lie in the right -half of the s-plane is

A unity feedback control system is characterized by the open-loop tran

1.	A unity feedback control system is characterized by the open-loop transfer functionG(s)=10K(s+2)s3+3s2+10.The Nyquist path and the corresponding Nyquist plot of G(s) are shown in the figures below.If 0<K<1, then the number of poles of the closed-loop transfer function that lie in the right -half of the s-plane is
Answer» A unity feedback control system is characterized by the open-loop transfer function $G (s) = \frac{10 K (s + 2)}{s^{3} + 3 s^{2} + 10} .$ The Nyquist path and the corresponding Nyquist plot of $G (s)$ are shown in the figures below. If $0 < K < 1$ , then the number of poles of the closed-loop transfer function that lie in the right -half of the s-plane is