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
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Correct Option: C
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