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.
integral (sin(x))/(1 + cos(x)^2) from x=0 to x=pi
integral (sin(x))/(1 + cos(x)^2) from x=0 to x=pi
Natural Language
Math Input
Extended Keyboard
