If A=[2−131] and B=[1472], then the value 3A−2B is

1.	If A=[2−131] and B=[1472], then the value 3A−2B is
Answer» If $A = [\begin{matrix} 2 & - 1 3 & 1 \end{matrix}]$ and $B = [\begin{matrix} 1 & 4 7 & 2 \end{matrix}]$ , then the value $3 A - 2 B$ is

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