Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
(\frac{\pi^2}{6})^2=\frac{5}{2}\sum\limits_{k=1}^{\infty} \dfrac{1}{k^4}
(\frac{\pi^2}{6})^2=\frac{5}{2}\sum\limits_{k=1}^{\infty} \dfrac{1}{k^4}
Natural Language
Math Input
Extended Keyboard