If `A=[(2, 3),( 5 ,7)]` , `B=[(-1 ,0, 2),( 3, 4, 1)]` , `C=[(-1, 2 ,3),( 2 ,1, 0)]` , find `A+B` and `B+C` (ii) `2B+3A` and `3C-4B` .

Explanation

$$
A=\left[\begin{array}{ll}
2 & 3 \\
5 & 7
\end{array}\right], B=\left[\begin{array}{ccc}
-1 & 0 & 2 \\
3 & 4 & 1
\end{array}\right] \text { and } C=\left[\begin{array}{ccc}
...