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Angled triangle ABC are x-1, x

  1. Jan 20, 2012 #1
    1. The problem statement, all variables and given/known data
    The length of the sides of the acute angled triangle ABC are x-1, x
    and x+1. BD is perpendicular to AC. Then CD-DA equals?


    2. Relevant equations


    cosine law
    3. The attempt at a solution
     
  2. jcsd
  3. Jan 20, 2012 #2

    HallsofIvy

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    Staff Emeritus
    Science Advisor

    Re: trigonometry

    Apparently your "Attempt at a solution" did not come get posted.
     
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