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1 February, 20:59

Determine the period and frequency of the function f (x) = cos (4x)

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  1. 2 February, 00:27
    0
    For a sinusoidal function

    f (x) = Acos (wt + phi)

    where A amplitude

    w angular velocity

    phi phase shift

    w = 4

    w = 2 pi f

    f = > frequency

    f = 4/2pi = 0.637 hz
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