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1 2 3a=2 3 4 1 5 8a)If the matrix of cofactors from A is 4 -12 7 -1 5 -3 find ? -1 ?

1 2 3a=2 3 4 1 5 8a)If the matrix of cofactors from A is 4 -12 7 -1 5 -3 find ? -1 ? -1b)Hence, using (a), find its inverse.

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