Question: What is the value of the determinant $\left|\begin{array}{lll}0 & 2 & 0 \\ 2 & 3 & 4 \\ 4 & 5 & 6\end{array}\right| ?$
Solution:
$\left|\begin{array}{lll}0 & 2 & 0 \\ 2 & 3 & 4 \\ 4 & 5 & 6\end{array}\right|$
$=0(18-20)-2(12-16)+0(10-12)$
$=8$
