6. Use an appropriate test, and clearly indicate which test you are using, in order to determine convergence or divergence for each of the following series. a. Σ. n=1 n³ + 2n b. - /n +13

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Chapter2: Second-order Linear Odes
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**Problem 6: Series Convergence or Divergence**

Use an appropriate test, and clearly indicate which test you are using, in order to determine convergence or divergence for each of the following series.

**a.**  
\[
\sum_{n=1}^{\infty} \frac{1}{n^3 + 2n}
\]

**b.**  
\[
\sum_{n=1}^{\infty} \frac{n^2}{\sqrt{n^6 + 13}}
\]

For both parts, choose a suitable convergence test, such as the Comparison Test, Ratio Test, or Root Test, among others. Discuss your reasoning and show all steps clearly.
Transcribed Image Text:**Problem 6: Series Convergence or Divergence** Use an appropriate test, and clearly indicate which test you are using, in order to determine convergence or divergence for each of the following series. **a.** \[ \sum_{n=1}^{\infty} \frac{1}{n^3 + 2n} \] **b.** \[ \sum_{n=1}^{\infty} \frac{n^2}{\sqrt{n^6 + 13}} \] For both parts, choose a suitable convergence test, such as the Comparison Test, Ratio Test, or Root Test, among others. Discuss your reasoning and show all steps clearly.
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