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.
r(t) = 1/2 t (t^2+4) where t=2
r(t) = 1/2 t (t^2+4) where t=2
Natural Language
Math Input
Extended Keyboard
