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Math Help - amplitude and frequency

  1. #1
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    amplitude and frequency

    A particle
    P moves with position x(t) = 4 cos(2t 2). Give the amplitude and

    frequency of this motion.
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  2. #2
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    If we have  y = a \cos (n\theta -b)

    Then a is the amplitude and \frac{2\pi}{n} is the period/frequency of the cos graph

    Use this information to solve the question
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