Finding a limit

  • Thread starter student85
  • Start date
  • #1
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Homework Statement


find the limit:

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


Homework Equations


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


The Attempt at a Solution


However, when using L'Hospital, I get nowhere since I keep getting indeterminations.
Help is appreciated.
 

Answers and Replies

  • #2
Dick
Science Advisor
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You'll have to repeatedly use L'Hopital until you get to a non-indeterminant. Takes 4 times, I think.
 
  • #3
138
0
damn, it gets pretty nasty...
Thanks.
 
  • #4
Dick
Science Advisor
Homework Helper
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Nasty how? It's just a little repetitious.
 

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