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![[Post New]](/templates/default/images/icon_minipost_new.gif) 14 May 2007 21:26:16 IST
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FANTASTIC ARJUN
INDEED , THE RANGE IS ( 1 , 2 )
BUT THIS WILL NOT DO
U HAVE TO GIVE ME A PROPER WRITTEN PROOF TO GET UR 20 RATING POINTS.................
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............tseb eht ma i |
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14 May 2007 21:31:45 IST
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@aatish ..jus put a=b=c=d
u get 4/3..........which is defenetely greater than 1.......
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14 May 2007 21:38:41 IST
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THE ANSWER IS OUT............
ANYBODY WITH THE PROOF.......
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............tseb eht ma i |
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14 May 2007 21:45:31 IST
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THE PROOF IS NOT THAT EASY....................
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............tseb eht ma i |
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14 May 2007 21:50:36 IST
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hey we can xpress da given sum as
1-(b+d)/a+b+d +1-(a+c)/a+b+c +1-(b+d)/b+c+d +1 -(a+c)/a+c+d
we gt
4-(the value above)
suppose we take a=b=1
nd make c and d very less....so tat dey can b ignored......
on eliminating by ignoring c and d in da above equation.......we get da max value as 1........
similarly if we say a=c=1 and ignore b and d making dem very less.....positive.....we get a max value of.....2
so even by trial an error all values lie between (1,2)
wat do ya say......is it correct?///
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14 May 2007 21:56:00 IST
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WELL TRIED BUT INCORRECT
SEE, U GET VALUES 1 AND 2 FOR SPECIFIC VALUES OF a,b,c,d .
WHAT U MUST TRY TO PROVE SOMEHOW IS THAT THE ANSWER
WILL BE B/W 1 AND 2 FOR EVERY a,b,c,d
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............tseb eht ma i |
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14 May 2007 21:57:36 IST
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i hav done it na.........or no.....
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14 May 2007 22:00:23 IST
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not quite so......
THE SOLUTION WHICH I WILL GIVE IS WAY BETTER THAN THIS .
THE ACTUAL SOLUTION ( just 4-5 lines ) is mindblowing
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............tseb eht ma i |
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14 May 2007 22:03:02 IST
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i think we hav to xpress the whole thing under a common denominator like......a+b+c+d........
wat do u say??
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14 May 2007 22:03:49 IST
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c, u have to earn ur points
u have to give a very pure solution
but i still appreciate ur efforts.
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............tseb eht ma i |
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14 May 2007 22:05:37 IST
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as far as ur common denominator theory goes , ur pretty close but i am smelling something fishy.
i hope ur doing this all alone.........
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............tseb eht ma i |
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14 May 2007 22:15:13 IST
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WHAT HAPPENED , ARJUN ................
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............tseb eht ma i |
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14 May 2007 22:18:39 IST
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naaaaaaaa......man.jus gettin some weird ideas after doin a pageful of scribblin.....
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14 May 2007 22:21:42 IST
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OK , IF U WISH , THEN CARRY ON WITH UR WORK.
I'LL REVEAL THE PROOF BY TOMORROW , 9 AM
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............tseb eht ma i |
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14 May 2007 22:25:21 IST
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