Determine x y if begin pmatrix 2 amp -3 -1 amp ... - JAMB Mathematics 1997 Question
Determine x + y if \(\begin{pmatrix} 2 & -3 \ -1 & 4 \end{pmatrix}\) \(\begin{pmatrix} x \ y \end{pmatrix}\) = \(\begin{pmatrix}-1 \ 8 \end{pmatrix}\)
A
3
B
4
C
7
D
12
correct option: c
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