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.
limit ((b^(t+1)-a^(t+1))/((b-a)))^(1/t) as t->0
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random