Question

Consider two matrices $A=\begin{bmatrix} 2 & 1 & 4 \\\ 1 & 0 & 3 \end{bmatrix}$ and $B=\begin{bmatrix} -1 & 0 \\\ 2 & 3 \\\ 1 & 4 \end{bmatrix}$
The determinant of the matrix AB is _____ (in integer).

Answer 1

The correct answer is 10.