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H(s)G(s)= (s+2)/(s^2 + 2s + 3)

and for a value of k=1.33 determine the location of the root, then find the equivalent damping coefficient.

After several attempts i was able to draw the correct root locus but I am not sure how to approach the other part of the question. Could someone with knowledge of the root locus offer me some assistance? Any comment would be greatly appreciated.