L'Hopital's Rule.

  • #1
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Homework Statement



Use l'Hopital's rule to evaluate the following limit:
lim x→0 e^(-1/x) / x for x> 0.

Homework Equations



differentiate the top and bottom until a limit can be found. Possibly rewrite as a product.

The Attempt at a Solution


I was under the impression that l'Hopital's rule could only be used for evaluating limits of indeterminate form i.e. 0/0 or ∞/∞. The above quotient doesn't fall into this category, does it? If someone could clear this up for me it'd be great.
 

Answers and Replies

  • #2
jbunniii
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Homework Statement



Use l'Hopital's rule to evaluate the following limit:
lim x→0 e^(-1/x) / x for x> 0.

Homework Equations



differentiate the top and bottom until a limit can be found. Possibly rewrite as a product.

The Attempt at a Solution


I was under the impression that l'Hopital's rule could only be used for evaluating limits of indeterminate form i.e. 0/0 or ∞/∞. The above quotient doesn't fall into this category, does it? If someone could clear this up for me it'd be great.
What is ##\lim_{x \to 0^+} e^{-1/x}##?
 
  • #3
310
0
What is ##\lim_{x \to 0^+} e^{-1/x}##?

It approaches some very small number. Ok, I see now. Thanks!
 

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