0606 P12 - Mar 2019 - Q6 - 7 marks
8235
(a) Given
\(A=\begin{pmatrix}1&2\\0&-1\end{pmatrix},\quad B=\begin{pmatrix}1&-4\\2&5\\3&1\end{pmatrix},\quad C=\begin{pmatrix}3&-2&0\end{pmatrix},\)
write down all the possible products that can be formed by multiplying two of these matrices.
(b) Given
\(X=\begin{pmatrix}2&-2\\5&3\end{pmatrix},\qquad Y=\begin{pmatrix}4&1\\2&0\end{pmatrix},\)
(i) find \(X^{-1}\),
(ii) solve the matrix equation \(XZ=Y\).
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