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    Trigonometry : Amplitude

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    1. y=cos x; for x=4pi

    2. Determine the Amplitude of: y = 3 sin x

    © BrainMass Inc. brainmass.com December 24, 2021, 6:43 pm ad1c9bdddf
    https://brainmass.com/math/trigonometry/trigonometry-problem-amplitude-134680

    Solution Preview

    A full revolution of a circle corresponds to an angle of 2Pi

    Therefore, angle 4Pi is equivalent to two full revolutions.

    Hence, it is also equivalent to an angle of ...

    Solution Summary

    A cosine is evaluated and an amplitude is found.

    $2.49

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