(a)[1]
Write this as one matrix expression: $\begin{pmatrix}-1&-3\\1&0\end{pmatrix}-\begin{pmatrix}1&-2\\2&-5\end{pmatrix}$.
(b)[2]
Find the inverse of $\begin{pmatrix}1&-1\\5&3\end{pmatrix}$.
Mathematics 4024 · O Level · Introduction to algebra
Mathematics 4024 · O Level · Introduction to algebra
Write this as one matrix expression: $\begin{pmatrix}-1&-3\\1&0\end{pmatrix}-\begin{pmatrix}1&-2\\2&-5\end{pmatrix}$.
Find the inverse of $\begin{pmatrix}1&-1\\5&3\end{pmatrix}$.