1.

For the system with given characteristic equation s5 + 4s4 + 8s3 + 8s2 + 7s + 4 = 0 The number of roots on left hand side, right hand side and imaginary axis are respectively.

A. 3, 2, 0
B. 4, 0, 1
C. 3, 0, 2
D. 4, 1, 0
Answer» E.


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