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.
\sum_{k=0}^{1000} (\binom{1000}{k} (-0.5)^k/\sqrt{k+1.2})
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
