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If A is an invertible matrix of order n , then the determinant of adj A is equal to :

\[\begin {array} {1 1} (a)\;| A |^n & \quad (b)\;|A|^{n+1} \\ (c)\;|A|^{n-1} & \quad (d)\;|A|^{n+2} \end {array}\]

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answered Nov 7, 2013 by pady_1

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