If M = | ll 8 & 3 9 & 7 4 & 3 | and N = | cc 4 & 7 5 & 3 10 & 1 |… - Vidyadip

Question

If $M =\left|\begin{array}{ll}8 & 3 \\ 9 & 7 \\ 4 & 3\end{array}\right|$ and $N =\left|\begin{array}{cc}4 & 7 \\ 5 & 3 \\ 10 & 1\end{array}\right|$ find $M + N$

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Answer

$\begin{array}{l}M=\left|\begin{array}{ll}8 & 3 \\ 9 & 7 \\ 4 & 3\end{array}\right|_{3 \times 2}, N =\left|\begin{array}{cc}4 & 7 \\ 5 & 3 \\ 10 & 1\end{array}\right|_{3 \times 2} \end{array} $
$ M + N =\left|\begin{array}{cc}8+4 & 3+7 \\ 9+5 & 7+3 \\ 4+10 & 3+1\end{array}\right|$
$=\left|\begin{array}{cc}12 & 10 \\ 14 & 10 \\ 14 & 4\end{array}\right|_{3 \times 2}$

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