Automatic Control Systems - Engineering

Q1:

If the characteristic equation is (λ + 1) (λ + 2) (λ + 3) = 0, the eigen values are

A -1, -2, -3

B 1, 2, 3

C 0, 1, 2

D 0, 2, 3

ANS:A - -1, -2, -3

Roots of characteristic equation are the eigen values.