If \[A=\left( \begin{matrix} 1 & -2 & 1 \\ 2 & 1 & 3 \\ \end{matrix} \right)\]and \[B=\left( \begin{matrix} 2 & 1 \\ 3 & 2 \\ 1 & 1 \\ \end{matrix} \right)\], then \[{{(AB)}^{T}}\]is equal to [RPET 2001]

\[\left( \begin{matrix} -3 & 7 \\ 10 & 2 \\ \end{matrix} \right)\]

\[\left( \begin{matrix} -3 & -2 \\ 10 & 7 \\ \end{matrix} \right)\]

\[\left( \begin{matrix} -3 & 10 \\ -2 & 7 \\ \end{matrix} \right)\]

If \[A=\left( \begin{matrix} 1 & -2 & 1 \\ 2 & 1 & 3 \\

1.	If \[A=\left( \begin{matrix} 1 & -2 & 1 \\ 2 & 1 & 3 \\ \end{matrix} \right)\]and \[B=\left( \begin{matrix} 2 & 1 \\ 3 & 2 \\ 1 & 1 \\ \end{matrix} \right)\], then \[{{(AB)}^{T}}\]is equal to [RPET 2001]
A.	\[\left( \begin{matrix} -3 & -2 \\ 10 & 7 \\ \end{matrix} \right)\]
B.	\[\left( \begin{matrix} -3 & 10 \\ -2 & 7 \\ \end{matrix} \right)\]
C.	\[\left( \begin{matrix} -3 & 7 \\ 10 & 2 \\ \end{matrix} \right)\]
D.	None of these
Answer» C. \[\left( \begin{matrix} -3 & 7 \\ 10 & 2 \\ \end{matrix} \right)\]

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If \[A=\left( \begin{matrix} 1 & -2 & 1 \\ 2 & 1 & 3 \\ \end{matrix} \right)\]and \[B=\left( \begin{matrix} 2 & 1 \\ 3 & 2 \\ 1 & 1 \\ \end{matrix} \right)\], then \[{{(AB)}^{T}}\]is equal to [RPET 2001]

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