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.
(1/2)\int_0^{+\infty} ( s/2-s^3/(2(s^2+4))-2s^3/(1+s^2)^2)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random