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JEEMAIN-2013
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If $P=\begin{bmatrix} 1 & \alpha & 3 \\ 1 & 3 & 3 \\ 2 & 4 & 4 \end{bmatrix} = 0 $ is the adjoint of $3 \times 3$ matrix $A$ and $|A|=4$ , then $\alpha$ is equal to :
$\begin{array}{1 1} (1) 4 \\ (2) 11 \\ (3) 5 \\ (4) 0 \end {array}$
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