\[\left| \,\begin{matrix} {{a}_{1}} & m{{a}_{1}} & {{b}_{1}} \\ {{a}_{2}} & m{{a}_{2}} & {{b}_{2}} \\ {{a}_{3}} & m{{a}_{3}} & {{b}_{3}} \\ \end{matrix}\, \right|=\] [RPET 1989]

\[m{{a}_{1}}{{a}_{2}}{{a}_{3}}\]

\[m{{a}_{1}}{{a}_{2}}{{b}_{3}}\]

\[m{{b}_{1}}{{a}_{2}}{{a}_{3}}\]

\[\left| \,\begin{matrix} {{a}_{1}} & m{{a}_{1}} & {{b}_{1}} \\

1.	\[\left\| \,\begin{matrix} {{a}_{1}} & m{{a}_{1}} & {{b}_{1}} \\ {{a}_{2}} & m{{a}_{2}} & {{b}_{2}} \\ {{a}_{3}} & m{{a}_{3}} & {{b}_{3}} \\ \end{matrix}\, \right\|=\] [RPET 1989]
A.	0
B.	\[m{{a}_{1}}{{a}_{2}}{{a}_{3}}\]
C.	\[m{{a}_{1}}{{a}_{2}}{{b}_{3}}\]
D.	\[m{{b}_{1}}{{a}_{2}}{{a}_{3}}\]
Answer» B. \[m{{a}_{1}}{{a}_{2}}{{a}_{3}}\]

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\[\left| \,\begin{matrix} {{a}_{1}} & m{{a}_{1}} & {{b}_{1}} \\ {{a}_{2}} & m{{a}_{2}} & {{b}_{2}} \\ {{a}_{3}} & m{{a}_{3}} & {{b}_{3}} \\ \end{matrix}\, \right|=\] [RPET 1989]

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