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Thread: Need Help with basic Arc secant

  1. November 28th 2007, 05:56 PM #1
    Zachbar
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    Need Help with basic Arc secant

    How do you find arcsecant= 3.291 in this value range: 90 degrees< arc <180 degrees.

    I need to see how to do it. Thank you.
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  2. November 29th 2007, 04:14 AM #2
    topsquark
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    Quote Originally Posted by Zachbar View Post
    How do you find arcsecant= 3.291 in this value range: 90 degrees< arc <180 degrees.

    I need to see how to do it. Thank you.
    What you wish to find is an angle x such that
    sec(x) = 3.291

    \frac{1}{cos(x)} = 3.291

    cos(x) = \frac{1}{3.291}

    x = acs \left ( \frac{1}{3.291} \right )

    -Dan
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