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.
integrate 2(20-abs(y))(cos(2y)^7) dy from –20 to 20
integrate 2(20-abs(y))(cos(2y)^7) dy from –20 to 20
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
