PLZ SKIP I NEED ACCURATE DIAGRAM AND ALL CALCULSTIONS I WILL REPORT TO CHEGG FOR WASTING MY QUE MULTIPLE DOWNVOTES ALREADY GOT INCOMPPETE ANS

Draw root locus for the following complex OLTF G(s)H(s)= k (s +a)/ (s (s-b)(s^2 +2zeta wn s +wn^2) take suitable values a =1 b=1 zeta=0.5 and wn=4 show 1.poles 2zeros 3.centroid 4.breakway 5.range