Use the Limit Comparison Test to determine whether the series converges. $$ \sum_{k=1}^{\infty} \frac{k^4 + 1}{k^5 - 9} $$ The Limit Comparison Test with $$ \sum_{k=1}^{\infty} $$ shows that the series
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The series is: $$ \sum_{k=1}^{\infty} \frac{k^4 + 1}{k^5 - 9} $$ Let $a_k = \frac{k^4 + 1}{k^5 - 9}$. For large $k$, the dominant term in the numerator is $k^4$ and the dominant term in the denominator is $k^5$. So, $a_k$ behaves like $\frac{k^4}{k^5} = Show more…
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