Question: A wave on a string has the equation x = ( 0 . 2 5 metres ) cos ( 2 3 t - 2 1

A wave on a string has the equation x =(0.25 metres) cos (23t-21x) What does the value 21 m^2 represent in this equation? The amplitude The wavelength \lambda The angular frequency w The frequency, f The wavenumber k

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