Question

For \[\begin{vmatrix}1&-2\\4&3\end{vmatrix}\], what is \(M_{12}\)?

Options

• \(-4\)

• \(3\)

• \(-2\)

• \(4\)

Answer 1

For \(M_{12}\), delete the first row and second column. The remaining entry is \(4\), so \(M_{12}=4\).