en+1 un=1 пеп+1 (-1)1-1(п+1) En=1 п (-1)n+1 n=1 n6

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Determine if the following series converge or diverge?

Certainly! Here are the mathematical expressions transcribed from the image:

1. The first series is:
   \[
   \sum_{n=1}^{\infty} \frac{e^{n+1}}{ne^{n+1}}
   \]

2. The second series is:
   \[
   \sum_{n=1}^{\infty} \frac{(-1)^{n-1}(n+1)}{n}
   \]

3. The third series is:
   \[
   \sum_{n=1}^{\infty} \frac{(-1)^{n+1}}{n^6}
   \]

These series represent infinite summations involving various expressions for each term based on the variable \( n \). The alternating signs in the second and third series suggest that they could be convergent series, often explored in mathematical analysis.
Transcribed Image Text:Certainly! Here are the mathematical expressions transcribed from the image: 1. The first series is: \[ \sum_{n=1}^{\infty} \frac{e^{n+1}}{ne^{n+1}} \] 2. The second series is: \[ \sum_{n=1}^{\infty} \frac{(-1)^{n-1}(n+1)}{n} \] 3. The third series is: \[ \sum_{n=1}^{\infty} \frac{(-1)^{n+1}}{n^6} \] These series represent infinite summations involving various expressions for each term based on the variable \( n \). The alternating signs in the second and third series suggest that they could be convergent series, often explored in mathematical analysis.
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