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The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m).(dx/dt) + (s/m).x = 0, if the roots of the equation are __________ then the system will be under damped.

A. Equal

B. Real

C. Complex conjugate

D. None of these

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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