Say if i have an equation:(adsbygoogle = window.adsbygoogle || []).push({});

x = cos pi/2 (x-330t)

someone told me that 330/4 is the period. I just want to know how come.... whats the 330 represent exactly? i tought it was w (angular frequency) which would mean w/2(pi) = f .... and 1/f = T but i dont get the same results as what he said (330/4) = T....

I'm very confused about this and ive got a test tomorrow... if someone could explain it to me Id very much appreciate it. Thank you

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# Homework Help: Waves and Pressure Changes

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