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... are [ a b c ], [ d e f ], [ g h i ]. Its determinant is

**aei**+ bfg + cdh - afh - bdi - ceg Then 2A will have rows [ 2a 2b 2c...1 Answers · Science & Mathematics · 25/05/2011

Consider this [a b] [c d] DET = ad - bc [a b c] [d e f] [g h i] write it like this: [a b c] a b [d e f] d e [g h i] g h look at the diagonals DET = (

**aei**+ bfg + cdh) - (gec + hfa + idb)2 Answers · Science & Mathematics · 21/03/2011

...addition of \ diagonals minus / diagonals, in other words

**aei**+ bfg + cdh - bdi - afh - ceg. (Do you see why I mentioned \...1 Answers · Science & Mathematics · 26/01/2011

determinant of a 3x3 matrix is =

**aei**+ bfg + cdh - afh - bdi - ceg where the matrix variables are: [a b c] [d e f] [g h i]1 Answers · Science & Mathematics · 01/12/2010

...1=-2 a b c d e f g h i the -2 is derived from this,

**aei**+bfg+cdh-ceg-bdi-afh=determinant yes AB is multiplying ...2 Answers · Science & Mathematics · 30/07/2010

a b c d e f g h i the value of this determinant is

**aei**+ bfg + cdh - ceg - afh - bdi if one row is zero then all the components are zero and sum of them is zero too3 Answers · Science & Mathematics · 05/05/2010

Determinant of: a b c d e f g h i is,

**aei**+ bfg + cdh - gec - hfa - idb1 Answers · Science & Mathematics · 25/02/2010

..., ABI, ABJ ACD, ACE ADE AEG,

**AEI**, AEJ AIJ BCF, BCI BDJ BEH, ...2 Answers · Science & Mathematics · 12/12/2009

...be with F and G while C is with D and H.

**AEI**BFG CDH 4th day, we select the remaining groups...2 Answers · Science & Mathematics · 19/09/2012

...d e f | |g h i | then its determinant is : det (A) =

**aei**− afh + bfg − bdi + cdh − ceg. 1) Equate that to 0 and you have equation...2 Answers · Science & Mathematics · 13/10/2009

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