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 from k=0 to h/2 (h!/((h-2k)!*(2k)!)) * x^(h-2k) * (1 - x^2)^(2k)
sum from k=0 to h/2 (h!/((h-2k)!*(2k)!)) * x^(h-2k) * (1 - x^2)^(2k)
Natural Language
Math Input
Extended Keyboard
