WAEC - Further Mathematics (2006 - No. 19)
Which of the following is a singular matrix?
\(\begin{pmatrix} 1 & 0 \\ 0 & 1 \end{pmatrix}\)
\(\begin{pmatrix} 2 & 1 \\ 3 & 2 \end{pmatrix}\)
\(\begin{pmatrix} 3 & 8 \\ 5 & 16 \end{pmatrix}\)
\(\begin{pmatrix} 0 & 1 \\ 1 & 0 \end{pmatrix}\)