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.
integrate from 1 to 2 2pi(t - 1/t^2)sqrt{(1 + 3t^2)^2 + (1 + 2/t^3)^2} dt
integrate from 1 to 2 2pi(t - 1/t^2)sqrt{(1 + 3t^2)^2 + (1 + 2/t^3)^2} dt
Natural Language
Math Input
Extended Keyboard