The OLTF of a unity feedback system is K(s+2)(s+4)/(s+5)(s+6) the angl – McqOptions

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1.	The OLTF of a unity feedback system is K(s+2)(s+4)/(s+5)(s+6) the angle of arrival of the root loci as s =-2, and s =-4 respectively are:
A.	0 ,180
B.	180 ,0
C.	90 ,180
D.	180 , 90
Answer» C. 90 ,180

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