Jambmaths question:
Find the value of $\left| \begin{matrix} 0 & 3 & 2 \\ 1 & 7 & 8 \\ 0 & 5 & 4 \\\end{matrix} \right|$
Option A:
10
Option B:
12
Option C:
–1
Option D:
–2
Jamb Maths Solution:
$\left| \begin{matrix} 0 & 3 & 2 \\ 1 & 7 & 8 \\ 0 & 5 & 4 \\\end{matrix} \right|=0(28-40)-3(4-8)+2(5-7)=10$
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