\[\left| \,\begin{matrix} 19 & 17 & 15 \\ 9 & 8 & 7 \\ 1 & 1 & 1 \\ \end{matrix}\, \right|=\] [MP PET 1990]

\[\left| \,\begin{matrix} 19 & 17 & 15 \\ 9 & 8 & 7 \\ �

1.	\[\left\| \,\begin{matrix} 19 & 17 & 15 \\ 9 & 8 & 7 \\ 1 & 1 & 1 \\ \end{matrix}\, \right\|=\] [MP PET 1990]
A.	0
B.	187
C.	354
D.	54
Answer» B. 187

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\[\left| \,\begin{matrix} 19 & 17 & 15 \\ 9 & 8 & 7 \\ 1 & 1 & 1 \\ \end{matrix}\, \right|=\] [MP PET 1990]

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