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![[Post New]](/templates/default/images/icon_minipost_new.gif) 1 Jul 2008 21:01:16 IST
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If and  , then find the value of n...where  denotes the determinant
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1 Jul 2008 22:17:45 IST
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sm1 reply yaar...
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If you have a kind word to say, say it now
If you have something to give, give it now
If you can make someone glad or another less sad,
Do it now... Do it now.... Do it now...
If you have trust to bestow, show it now
If you have friendship to give, give it now
If there's pain you can ease or someone you can please,
Do it now... Do it now... Do it now...
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1 Jul 2008 23:30:08 IST
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n n n
sigma Dk= 2n(n+1)/2 n^2+n+2 n^2+n
n(n+1)-1 n^2 n^2+n+2
n n n
sigma Dk=n^2+n n^2+n+2 n^2+n
n^2+n-n n^2 n^2+n+2
n o 0
sig Dk= n^2+n 2 0
n^2 0 n+2
n 0 0
sig Dk= n^2+n 2 0
n^2+n-n 0 n+2
dis gives
48=2n^2+4n
n=-6 or 4
n=4
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