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Math Help - Trig ID's

  1. #1
    Junior Member
    Joined
    Oct 2008
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    39

    Post Trig ID's

    Could someone please work this out so I can check my work....
    Tan(-7Pi/12)...Tan(-pi/3 + -pi/4). Use Tan A + Tan B/ 1- Tan A Tan.

    Thanks.
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  2. #2
    Super Member

    Joined
    May 2006
    From
    Lexington, MA (USA)
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    Hello, Brndo4u!

    Has it occurred to you? . If you show us your work
    (or the answer, at least), we can check it for you.



    Evaluate: . \tan\left(-\frac{7\pi}{12}\right)

    Answer: . 2 + \sqrt{3}

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