- #1
Oxymoron
- 870
- 0
Prove only using Fourier Series!
By considering the Fourier Series of [itex]f(x)=x^2[/itex] prove that
[tex] \sum_{n=1}^{\infty} \frac{1}{n^4} = \frac{\pi^4}{90}[/tex]
By considering the Fourier Series of [itex]f(x)=x^2[/itex] prove that
[tex] \sum_{n=1}^{\infty} \frac{1}{n^4} = \frac{\pi^4}{90}[/tex]