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Ask iit jee aieee pet cbse icse state board community Community Discussion Question: Matrices and determinants
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[Post New]1 Jul 2008 22:33:08 IST
    Subject: Matrices and determinants
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muskaanrelhan (470)

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If, then the value of  is...???
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[Post New]1 Jul 2008 23:03:45 IST
    Subject: Matrices and determinants
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smarsh (200)

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is it -2n^2
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[Post New]1 Jul 2008 23:05:07 IST
    Subject: Re:Matrices and determinants
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muskaanrelhan (470)

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-2n
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[Post New]1 Jul 2008 23:23:26 IST
    Subject: Matrices and determinants
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pink_ele (1158)

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1+1+1......ntyms 1+2+3...n 2+4+...2^n

sum= 2 n n^2
n n(n+1)/2 2^n+1




n n(n+1)/2 2(2^n-1)
sum= 2 n n^2
n n(n+1)/2 2^n+1

row 1>r1-r3


0 0 -2
sum= 2 n n^2
n n(n+1)/2 2^n+1

sum=-2n
nobody is wrong
even a stopped clock is right twice a day
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