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{4(5-\sin(\pi/(10)) }{ (5^2-1)\sin(\pi/10)}- \int_0^{2\pi} ( |\sin(x)\cos(5x)| ) dx
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random