1.

If \[A=\left[ \begin{matrix} 1 & 3 & 0 \\ -1 & 2 & 1 \\ 0 & 0 & 2 \\ \end{matrix} \right],B=\left[ \begin{matrix} 2 & 3 & 4 \\ 1 & 2 & 3 \\ -1 & 1 & 2 \\ \end{matrix} \right]\], then AB = [EAMCET 1987]

A. \[\left[ \begin{matrix} 5 & 9 & 13 \\ -1 & 2 & 4 \\ -1 & 2 & 4 \\ \end{matrix} \right]\]
B. \[\left[ \begin{matrix} 5 & 9 & 13 \\ -1 & 2 & 4 \\ -2 & 2 & 4 \\ \end{matrix} \right]\]
C. \[\left[ \begin{matrix} 1 & 2 & 4 \\ -1 & 2 & 4 \\ -2 & 2 & 4 \\ \end{matrix} \right]\]
D. None of these
Answer» C. \[\left[ \begin{matrix} 1 & 2 & 4 \\ -1 & 2 & 4 \\ -2 & 2 & 4 \\ \end{matrix} \right]\]


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