Is the Limit of 5^x/x as x Approaches Infinity Really Infinity?

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Homework Help Overview

The discussion revolves around evaluating the limit of the expression 5^x/x as x approaches infinity, a topic within calculus and limits.

Discussion Character

  • Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to apply L'Hôpital's rule to evaluate the limit and questions the correctness of their reasoning. Other participants point out a typographical error regarding variable notation and suggest a reformulation of the expression after applying L'Hôpital's rule.

Discussion Status

The discussion is ongoing, with participants exploring different interpretations of the limit and clarifying the application of L'Hôpital's rule. Some guidance has been offered regarding the transformation of the expression after the first application of the rule.

Contextual Notes

There is a noted confusion regarding variable notation, with the original poster initially using 'x' and later correcting it to 'n'. This may affect the clarity of the discussion.

cue928
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Lim as n-> inf: 5^x/x
So I used l'hopital's rule and came up with (5^x)(ln(5))
As n becomes progressively larger, it is continually multiplied by ln(5) but the overall number still goes to infinity. Is that correct logic?
 
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There is no 'n' in your expression.
 
Sorry, replace the x's with n's. Skipped a step in my haste to type.
 
After you apply L Hospital for the first time u get 5^nln(5)/1 now write that expression as ln5/5^-n...this is a form of k/0 where k is a constant...this form will tend to infinity if k is positive else minus infinity
 

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