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Question Bank [2022] — Maths (commerce) STD 12 Commerce / Arts — Question

Maharashtra BoardEnglish MediumSTD 12 Commerce / ArtsMaths (commerce)Question Bank [2022]1 Mark
Question
If $A=\left[\begin{array}{cc}1 & -2 \\ 5 & 3\end{array}\right], B=\left[\begin{array}{ll}1 & -3 \\ 4 & -7\end{array}\right]$, then $A-3 B=$ _______
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Answer

$\left[\begin{array}{cc}-2 & 7 \\ -7 & 24\end{array}\right]$

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