For the characteristic equation s⁵ + s⁴ + 2s³ + 2s² + 3s + 15 = 0,

Question

For the characteristic equation s⁵ + s⁴ + 2s³ + 2s² + 3s + 15 = 0, the number of roots in left half s plane are

Options:

A . 1

B . 2

C . 3

D . 5

Answer: Option C
Answer: (c).3

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