The angles of asymptotes of the root loci of the equation s3+5s2+(K+2

1.	The angles of asymptotes of the root loci of the equation s3+5s2+(K+2)s+K=0 are:
A.	0° and 270°
B.	0° and 180°
C.	90° and 270°
D.	90° and 180°
Answer» D. 90° and 180°

Discussion

The characteristic equation is s3+14s2+(45+K)s+K =0, centroid is located at (-x,0) then the value of x is ____________
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The angles of asymptotes of the root loci of the equation s3+5s2+(K+2)s+K=0 are:
Determine the centroid of the root locus for the system having G(s)H(s) = K/(s+1)(s2+4s+5)
With reference to root locus, the complex conjugate roots of the characteristic equation of the O.L.T.F. given below G(s)H(s) =K(s+3)/(s+1)2, lie on
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:?$
The_characteristic_equation_is_s<sup>3</sup>+14s<sup>2</sup>+(45+K)s+K_=0,_centroid_is_located_at_(-x,0)_then_the_value_of_x_is_____________$