- #1
Rono
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- 0
Homework Statement
Analyze the convergence of the following series, describing the criteria used:
[itex]\displaystyle\sum_{n=9}^{\infty}\frac{1}{(ln(ln(n)))^{ln(n)}}[/itex]
Homework Equations
None
The Attempt at a Solution
Wolfram Alpha says it converges due to comparison test, however I can't find to get a proper comparison. My main attempt was starting with [itex]\displaystyle ln(n)< n[/itex] and, starting from there, getting:
[itex](ln(ln(n)))^{ln(n)} < (ln(n))^{ln(n)} < n^{ln(n)} < n^{n}[/itex]
However, after getting their reciprocal, I manage to prove [itex]\frac{1}{n^{n}}[/itex] converges, but that is inconclusive. Any idea to which function I should start with to get the comparison test right?