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If A and B are 4x4 matrices, det(A) = -4, det(B) = 3, then (h) det((8A)^-1) = ????
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High School Teacher
We will use the following two properties of determinants:
1) `det(cA)=c^ndet(A),` `c in RR` when `A` is `nxxn` matrix
Hence we have
Posted by tiburtius on April 28, 2013 at 5:53 AM (Answer #1)
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