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  • Mar 1, 2010, 11:08 PM
    cookie007
    how to find focus of equation
    what is the focus of
    4x^2-25y^2=100
  • Mar 2, 2010, 09:15 AM
    ebaines

    First - do you recognize that this is te hequatio of a hyperbola?You need to put the equation into the standard form for a hyperbola:



    The focus can then be found from:


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