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estudos gerais05/04/2025

9. $\sum_{n=1}^{\infty} (-1)^{n} \frac{(1,1)^{n}}{n^{4}}$

Determine se a série é absolutamente convergente, condicionalmente convergente ou divergente.

9. $\sum_{n=1}^{\infty} (-1)^{n} \frac{(1,1)^{n}}{n^{4}}$
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