Question:
If possible, find the sum of the matrices A and B, where A =
$\left[\begin{array}{cc}\sqrt{3} & 1 \\ 2 & 3\end{array}\right]$ and $\mathrm{B}=$
$\left[\begin{array}{lll}x & y & z \\ a & b & 6\end{array}\right]$
Solution:
The given two matrices A and B are of different orders. Two matrices can be added only if order of both the matrices is same. Thus, the sum of matrices A and B is not possible.
$X=\left[\begin{array}{ccc}3 & 1 & -1 \\ 5 & -2 & -3\end{array}\right]$ and $Y=\left[\begin{array}{ccc}2 & 1 & -1 \\ 7 & 2 & 4\end{array}\right]$, find
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