Determinant of $$$\left[\begin{array}{cc}8 & 0\\2 & 4\end{array}\right]$$$

Calculate $$$\left|\begin{array}{cc}8 & 0\\2 & 4\end{array}\right|$$$.

The determinant of a 2x2 matrix is $$$\left|\begin{array}{cc}a & b\\c & d\end{array}\right| = a d - b c$$$.

$$$\left|\begin{array}{cc}8 & 0\\2 & 4\end{array}\right| = \left(8\right)\cdot \left(4\right) - \left(0\right)\cdot \left(2\right) = 32$$$

$$$\left|\begin{array}{cc}8 & 0\\2 & 4\end{array}\right| = 32$$$A