Q. 38 The characteristic equation of a closed-loop system is s(s + 1) (s + 3)k(s + 2)
= 0, k > 0.Which of the following statements is true ?
(A) Its root are always real
(B) It cannot have a breakaway point in the range -1 < Re[s] < 0
(C) Two of its roots tend to infinity along the asymptotes Re[s] =- 1
(D) It may have complex roots in the right half plane.
Answer:(C)
Explanation:
