Ex. 445. G(s)=k(s+7)/(s(s+12)(s+17)) is the FTF of a unity- feedback closed-loop system. Sketch the root locus with respect to k. Determine the number of asymptotes, N. Determine the angle, A, in degrees between the asymptotes. Determine the angles, [B,C], in degrees of the asymptotes (let B<C). Asymptote angles: -180<angle<0 and 0<angle<=180 Determine the asymptote centroid, s=D. Answers: N,A,B,C, and D. ans:5
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