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-x^2/2+x^4/24-x^6/720+x^8/40320 where x=pi/60
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random