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If 1/x +1/y =1/2 and 1/x - 1/y = 1/4, find 1/ (x^2) - 1/ ( y^2)?

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If 1/x +1/y =1/2 and 1/x - 1/y = 1/4, find 1/ (x^2) - 1/ ( y^2)?

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  1. Try the Mathematics or Homework sections.  The answer to your question won't help you find your ancestors


  2. This is the genealogy forum.  You are in the wrong place.
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