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![[Post New]](/templates/default/images/icon_minipost_new.gif) 14 Mar 2008 13:22:34 IST
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the upper bound..
multiply both sides by 2^ 1998 rhs becomes (odd prod.).2^999 / 999! this is nothing but 1998C999...
now it becomes something like a = 2nCn / 2^2n. rhs is always less than 1/2n+1..( 2^2n/2nCn > 2n+1 ) hence it becomes a>1/1999...
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Diamonds r formed under greatest pressures..
so r the champs.
Kriteesh..
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