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.
plot (sin(x) * (1+cos(x/20)) , x ,0,300
plot (sin(x) * (1+cos(x/20)) , x ,0,300
Natural Language
Math Input
Extended Keyboard
