(a)[2]
Express as a single matrix $3\begin{pmatrix}1 & 3 \\ -2 & 5\end{pmatrix} - \begin{pmatrix}4 & 0 \\ -1 & 2\end{pmatrix}$.
(b(i))[1]
Given $A = \begin{pmatrix}3 & -2 \\ p & -1\end{pmatrix}$ and the determinant of $A$ is $2$, find $p$.
(b(ii))[1]
Find the inverse matrix $A^{-1}$.