Problem 5.3 Prove that п(п + 1)(2n + 1) (Зп? + 3п — – 1) 30 j=1 whenever n is a positive integer.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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---

**Problem 5.3**

Prove that

\[
\sum_{j=1}^{n} j^4 = \frac{n(n+1)(2n+1)(3n^2+3n-1)}{30}
\]

whenever \( n \) is a positive integer.

---

This problem involves demonstrating the equivalence of a sum of fourth powers to a polynomial expression, providing insight into number theory and mathematical series. The formula shown allows for the calculation of the sum without directly computing each term individually.
Transcribed Image Text:Certainly! Here is the transcription of the text suitable for an educational website: --- **Problem 5.3** Prove that \[ \sum_{j=1}^{n} j^4 = \frac{n(n+1)(2n+1)(3n^2+3n-1)}{30} \] whenever \( n \) is a positive integer. --- This problem involves demonstrating the equivalence of a sum of fourth powers to a polynomial expression, providing insight into number theory and mathematical series. The formula shown allows for the calculation of the sum without directly computing each term individually.
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