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Finding a limit

  1. Mar 27, 2007 #1
    1. The problem statement, all variables and given/known data
    find the limit:

    lim (lnx)^3 / x
    x-->(infinity)


    2. Relevant equations
    It's a L´hospital homework so that should be what I need to use.


    3. The attempt at a solution
    However, when using L'Hospital, I get nowhere since I keep getting indeterminations.
    Help is appreciated.
     
  2. jcsd
  3. Mar 27, 2007 #2

    Dick

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    You'll have to repeatedly use L'Hopital until you get to a non-indeterminant. Takes 4 times, I think.
     
  4. Mar 27, 2007 #3
    damn, it gets pretty nasty...
    Thanks.
     
  5. Mar 27, 2007 #4

    Dick

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    Nasty how? It's just a little repetitious.
     
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