Sum of the convergent infinite series ln(n)/n^2

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SUMMARY

The sum of the convergent infinite series ln(n)/n^2 from n=1 to infinity can be evaluated using Stolz-Cesàro theorem, which is analogous to L'Hôpital's rule. The series is confirmed to be convergent, and attempts to apply geometric series or telescoping methods were ineffective. The correct approach involves manipulating the logarithmic terms and applying Stolz's theorem to derive the limit effectively.

PREREQUISITES
  • Understanding of infinite series convergence
  • Familiarity with logarithmic functions and their properties
  • Knowledge of Stolz-Cesàro theorem
  • Basic calculus concepts, including limits
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  • Study Stolz-Cesàro theorem in detail
  • Learn about convergence tests for infinite series
  • Explore applications of L'Hôpital's rule in series
  • Investigate properties of logarithmic functions in calculus
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Homework Statement



Find the sum of the series: ln(n)/n^2 from n=1 to infinity.
I already know that it is convergent(at least i hope i am right on that fact)

Homework Equations





The Attempt at a Solution


I tried to use geometric series but i can't see anything like that that would work, and i can't see a way to use telescoping. And just starting with n=1 and summing numbers didn't seem to get me anywhere either.
 
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You still can use telescoping.
ln((n+1)^(1/(n+1)^2))-ln(n^(1/n^2)), use stolz theorem on this limit to get your answer, btw I am sure you know that but stolz theorem resembles L'hopital theorem.
 
Thank you very much :)
 

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