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A caculus question concerning limits

  1. Feb 4, 2009 #1
    Ok so i came upon this question and i have no idea what to do!!

    limit
    x->a

    x^n-a^n / x - a

    the answer is na^n-1
     
  2. jcsd
  3. Feb 4, 2009 #2

    Dick

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    Science Advisor
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    l'Hopital's rule is pretty handy here. Do you know that?
     
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