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?

It may have complex roots in the right half plane

It cannot have a breakaway point in the range 1 < Re[s] < 0

Two of its roots tend to infinity along the asymptotes Re[s] = 1

The characteristic equation of a closed-loop system is s(s + 1)(s + 3)

1.	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 roots 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» D. It may have complex roots in the right half plane

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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?

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