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Compute |A| using Sarrus rule if A=[{:(3...

Compute `|A|` using Sarrus rule if `A=[{:(3,4,1),(0,-1,2),(5,-2,6):}]`

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If A= [(2,3,1),(1,0,2),(2,1,0)] compute A^(2) .

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Using elementary transformations, find the inverse of the following matrices [{:(1,3,2),(-3,0,-5),(2,5,0):}]

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