The determination of the matrix begin pmatrix 1... - JAMB Mathematics 1994 Question
The determination of the matrix \(\begin{pmatrix} 1 & 3 & 3 \ 4 & 5 & 6\ 2 & 0 & 1 \end{pmatrix}\) is
A
-67
B
-57
C
-3
D
3
correct option: d
4 x 2 = -8 upward arrows = +ve
2 x 5 x 3 = 30
0 x 6 = \(\frac{0}{22}\) downward arrows = -ve
-1(1 x 5x - 1) = 5 - (2 x 6 x 2) = -24
= -(4 x 0 x 1)
= \(\frac{0}{-19}\)
therefore 22 - 19 = 3
2 x 5 x 3 = 30
0 x 6 = \(\frac{0}{22}\) downward arrows = -ve
-1(1 x 5x - 1) = 5 - (2 x 6 x 2) = -24
= -(4 x 0 x 1)
= \(\frac{0}{-19}\)
therefore 22 - 19 = 3
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