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 (cos(2*t)+2*cos(t),sin(2*t)-2*sin(t) ) for t = 0 to t = 2*pi/3
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random