CP7.1 Using the rlocus function, obtain the root locus for the following transfer functions of the system shown in Figure CP7.1 when 0 :

25 a. G(s)=3+10s +40s +25 s+10 b. G(s): = s+2s+10 c. G(s) = c. G(s): = R(s) s+2s+4 s(s + 5s +10) $5 +64 +683 +12s2 + 6s+4 s6 +45 +54 +$3+s + 12s+1 + KG(s) Y(s)