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Math Help - Trig Help (finding period/inverses)

  1. #1
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    Trig Help (finding period/inverses)

    How would you find the period of the trig function 2cos1/3x? And sinπx/24?
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  2. #2
    MHF Contributor MarkFL's Avatar
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    Re: Trig Help (finding period/inverses)

    For y=A\sin(Bx) or y=A\cos(Bx), the period T is:

    T=\frac{2\pi}{B}
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  3. #3
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    Re: Trig Help (finding period/inverses)

    Ok, so the period for the first equation is 2pi/(1/3)?
    And the second is 2pi/(xpi/24)?
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  4. #4
    MHF Contributor MarkFL's Avatar
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    Re: Trig Help (finding period/inverses)

    For the first, you may simplify by using 1/(1/3) = 3, and for the second, you do not include x, and you may divide out pi, and bring the 24 up to the numerator.
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