My proof:

I think to think about the next one, give me a little while.
Posted 22 December 2008 - 04:18 PM
Posted 22 December 2008 - 04:30 PM
This post has been edited by KYA: 22 December 2008 - 04:32 PM
Posted 22 December 2008 - 05:05 PM
dic_math_problem__series_.doc (17K)
Posted 22 December 2008 - 08:27 PM
