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Math Help - finding theta in radians

  1. #1
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    finding theta in radians

    find theta in radians to the nearest tenth if: sec(theta) = 1.4231

    is this correct:

    enter into calculator: cos^(-1)= 1/1.4231

    get .7916232503, rounded to the nearest tenth = .8
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  2. #2
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    Correct - always make sure your calculator is in the appropriate mode (degrees vs. radians). Perfect!
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