Re: Aik Sawaaal..
aap k hath main jo bhi cheez aati hay aap ki hojati hay ? main aap say haath nai milaoonga :-p
sabko to nahi, lekin I tought k kuch to hongay smart, lekin disappointment :-p
yep, thanks 
I guess its better now to give a clue. with your permission the clue is
anything multiplied by ZERO is always a zero …
now how you get a zero, thats the thing to think…
I say write down the whole sequence till x-y… and get what you didn’t get :-p