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Solving Tan(A) + tan(B) + tan(C)

  1. Nov 8, 2011 #1
    Recently My friend gave me a question about trigo

    1. The problem statement, all variables and given/known data

    How do I Solve This?
    Tan(A) + tan(B) + tan(C)

    On My Own Thought
    Maybe I Think That The Question Is Quite Incomplete

    2. The attempt at a solution

    Any Idea To Start The Calculation?
  2. jcsd
  3. Nov 8, 2011 #2


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    Staff: Mentor

    Tan(A) + tan(B) + tan(C)
    is not an equation, so has no "solution".
  4. Nov 8, 2011 #3


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    Homework Helper

    Perhaps the question was something like this?
    Prove that if A, B and C are the 3 angles in a triangle,
    [itex]\tan A + \tan B + \tan C = (\tan A)(\tan B)(\tan C)[/itex]
  5. Nov 9, 2011 #4


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    Staff: Mentor

    If your hunch is correct, :smile: then I'm sure there will be plenty of solutions to be found by a google search.
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