Ononot — Consider the series \sum{n=1}^{\infty} \frac{2n^3 + n^2}{n^6

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Infinite Serieshard

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Consider the series $\sum_{n=1}^{\infty} \frac{2n^3 + n^2}{n^6 + 3n^4 + 1}.$ Which convergence test is most practical to apply directly?