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.
RSolve[f[n+1]-f[n]==-Log[2]/2^n,f[n],n]
RSolve[f[n+1]-f[n]==-Log[2]/2^n,f[n],n]
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random