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 ((4n+3)(2n+2)+(4n+1)(2n+2)-(4n+1)(4n+3))/((4n+1)(4n+3)(2n+2)) 0 to inf
sum ((4n+3)(2n+2)+(4n+1)(2n+2)-(4n+1)(4n+3))/((4n+1)(4n+3)(2n+2)) 0 to inf
Natural Language
Math Input
Extended Keyboard
