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.
(1+t)^(t/2) (1-t)^(-t/2) -2/sqrt(1-t^2)+1 near 0
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random