If \[A=[1\,2\,3],B=\left[ \begin{align} & 2 \\ & 3 \\ & 4 \\ \end{align} \right]\] and \[C=\left[ \begin{matrix} 1 & 5 \\ 0 & 2 \\ \end{matrix} \right]\], then which of the following is defined [RPET 1996]

If \[A=[1\,2\,3],B=\left[ \begin{align} & 2 \\ & 3 \\ & 4 \\ \e

1.	If \[A=[1\,2\,3],B=\left[ \begin{align} & 2 \\ & 3 \\ & 4 \\ \end{align} \right]\] and \[C=\left[ \begin{matrix} 1 & 5 \\ 0 & 2 \\ \end{matrix} \right]\], then which of the following is defined [RPET 1996]
A.	AB
B.	\[BA\]
C.	\[(AB)\,\text{. }C\]
D.	\[(AC)\,.\,B\]
Answer» C. \[(AB)\,\text{. }C\]

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If \[A=[1\,2\,3],B=\left[ \begin{align} & 2 \\ & 3 \\ & 4 \\ \end{align} \right]\] and \[C=\left[ \begin{matrix} 1 & 5 \\ 0 & 2 \\ \end{matrix} \right]\], then which of the following is defined [RPET 1996]

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