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A wave composed of two sinusoidal waves of identical amplitude but different frequencies has the equation

s = 2A cos (45.0t) cos (67.0t)

where the coefficient of t is stated in rad/s.

(a) What is the lower of the two frequencies (in Hz) of the sinusoidal waves?

(b) What is the higher of the two frequencies (in Hz) of the sinusoidal waves?

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Reference No.:- M91677542

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