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Unity feed-back control system with the following feedforward transfer function : Root loci

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Consider a unity feed-back control system with the following feedforward transfer function:

G(s) = K(s^2+25)s/s^4+404s^2+1600

Plot the root locus (or root loci) for the system with MATLAB. Show that the system is stable for all values of K>0.

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Root loci for a unity feed-back control system with the following feedforward transfer function are plotted.

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