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.
derivative[[n/(n-1)^2][(n-1)f-ln[(n-1)f+1]],f]
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random