Question: E6.15 A system has a characteristic equation q s ( ) = + s s 6 5 9 + + 31.25 s s 4 3

E6.15 A system has a characteristic equation

q s( ) = + s s 6 5 9 + + 31.25s s 4 3 61.25

+ + 67.75s s 2 14.75 + = 15 0.

(a) Determine whether the system is stable, using the Routh–Hurwitz criterion.

(b) Determine the roots of the characteristic equation.

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