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[" Matrices "],[" Mca-Single correct "],[" A if "A=[[2,-3],[-4,1]]" ,then adj "(3A^(2)+12A)" is equalto: "],[[" (1) "[[72,-84],[-63,51]]],[" (3) "[[51,84],[63,72]]]],[" (3) "[[51,84],[63,72]]]

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If A=[(2,-3),(-4,1)] then (3A^2+12A) is equal to (a) [(72,-84),(-63,51)] (b) [(51,63),(84,72)] (c) [(52,84),(63,72)] (d) [(72,-63),(-84,51)]

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