Question

A closed-loop systems transfer function is given in the form: T(S) = $3 + 732 - 21s + 10 S6 + 55 – 6s+ - 52 - S + 6 How many

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Answer #1

by solving characteristic equation,

s^6 + s^5 - 6s^4 - s^2 - s + 6 = 0

we get a root of equation is,

s = -3

s = -1

s = 1

s = 2

s = i (imaginary)

s = -i (imaginary)

so we say like the 2 poles on RHS , 2 poles on LHS and 2 poles on the jw axis.

so option 3 is correct.

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