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.
sin(x)+1/2 sin(2x)+1/3 sin(3x) = x^3+x^2/3
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
