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Home  >>  EAMCET  >>  Mathematics
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If A is a square matrix such that $A(adj \;A)=\begin {bmatrix} 4 & 0 & 0 \\ 0 & 4 & 0 \\ 0 & 0 & 4 \end {bmatrix}$, then det (adj A) $ is equal to

\[\begin {array} {1 1} (a)\;4 & \quad (b)\;16 \\ (c)\;64 & \quad (d)\;256 \end {array}\]

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(b) 16
answered Nov 7, 2013 by pady_1
 

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