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Math Help - Inverse Functions help

  1. #1
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    Inverse Functions help

    Hey guys i'm trying to figure these Inverse problems out. Any and all help would be greatly appreciated.


    arcTan(- √3) . Give Answer in Exact Radians


    and
    is this possible?



    Sin[arcCos(-1/3)+arcSin(2/5)] . Give Answer in Exact Radians
    Last edited by baconfoot; April 11th 2010 at 04:17 PM.
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  2. #2
    MHF Contributor
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    Talking

    Quote Originally Posted by baconfoot View Post
    arcTan(- √3) . Give Answer in Exact Radians
    What angle measure \theta gives you a tangent value of \sqrt{3}? Where (that is, in which quadrants) is tangent negative?

    Quote Originally Posted by baconfoot View Post
    Sin[arcCos(-1/3)+arcSin(2/5)] . Give Answer in Exact Radians
    If you've learned about angle-sum identities, this might be a good place to apply one.
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