Saturday, August 3, 2013

Find the determinant of [-2 1 4][ 6 3 -4][ 1 -1 5]

[-2 1 4]
[ 6 3 -4]
[ 1 -1 5] 

expand about row 3 to get: 
det =1(-4-12)+1(8-24)+5(-6-6)=-92
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