The necessary condition for the stability of the linear system is tha – McqOptions

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1.	The necessary condition for the stability of the linear system is that all the coefficients of characteristic equation 1+G(s)H(s) =0, be real and have the :
A.	Positive sign
B.	Negative sign
C.	Same sign
D.	Both positive and negative
Answer» D. Both positive and negative

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