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Thread: Proving equation for angle in a triangle

  1. March 24th 2011, 12:26 AM #1
    soukaein
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    Proving equation for angle in a triangle




    In the diagram above, D divides BC in the ratio μ:γ. Prove that
    (μ+γ) cot θ = μ cot α- γ cot β

    I need some guidance to solve this question.
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  2. March 24th 2011, 04:14 AM #2
    Prove It
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    What diagram?
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  3. March 24th 2011, 05:08 AM #3
    soukaein
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« could you explain this formula please... | angle in => 3 dimensions must lie between 0 and pi radians? »

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