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Homework Help

  1. Oct 12, 2005 #1
    I need to find the limit as x-> 0 for ((√1+x)-1)/x
    but I can't figure out how to get rid of x in the denominator or atleast make the limit not equal to 0 in the denominator. I know this is probably going back some, but it's been a little while since I've done this. I've tried about every trick I can think of, but I can't seem to figure it out, but my book seems to think there's an answer.
     
  2. jcsd
  3. Oct 12, 2005 #2

    Tide

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    Are you familiar with l'Hopital's rule?
     
  4. Oct 12, 2005 #3

    HallsofIvy

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    Tide, L'Hopital's rule is "overkill"!

    Jeann25, multiply both numerator and denominator by sqrt(1+x)+ 1 to rationalize the numerator.
     
  5. Oct 13, 2005 #4
    Thank you for the help!
     
  6. Oct 14, 2005 #5

    Tide

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    Halls,

    Of course! But I was trying to ascertain whether the assignment related to a lesson on l'Hospital. :)
     
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