Re: Aik Sawaaal..
...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
All are D for Buffers...
in the sequence (a-x)(b-x)... (x-x)(y-x)(z-x) = 0 *
**since (x-x) = 0 ... hence whole sequence is 0...