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 2sin(pi*t) +2cos(pi*t) for t = 0 to 2
plot 2sin(pi*t) +2cos(pi*t) for t = 0 to 2
Natural Language
Math Input
Extended Keyboard