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if $P = [\begin{matrix} 1 & λ & 3 \\ 1 & 3 & 3 \\ 2 & 4 & 4 \end{matrix}]$ is the adj of $a 3X3$ matrix A and $|A| = 4$ ,then $λ =$

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Correct option is B

We have∣ adj A|=P=|A2⇒1λ3133244=16⇒112-12-λ4-6+34-6=12⇒2λ=18⇒λ=9

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if P=1λ3133244 is the adj of a 3X3 matrix A and A=4,then λ=

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if $P = [\begin{matrix} 1 & λ & 3 \\ 1 & 3 & 3 \\ 2 & 4 & 4 \end{matrix}]$ is the adj of $a 3X3$ matrix A and $|A| = 4$ ,then $λ =$