For each system shown in Figure P8.6, make an accurate plot of the root locus and find the follow- ing: [Section: 8.5] a. The breakaway and break-in points b. The range of K to keep the system stable c. The value of K that yields a stable system with critically damped second-order poles d. The value of K that yields a stable system with a pair of second-order poles that have a damping ratio of 0.707 R(s) + K(s+2)(s+1) (s-2)(s-1) C(s) System 1 R(s) + K(s+2)(s+1) (s2-2s+2) C(s) System 2 FIGURE P8.6