<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">\documentclass[a4paper,12pt]{article}
\newcommand\ds{\displaystyle}

\begin{document}

\parindent=0pt

QUESTION

Express $(\textbf{CD})^{-1}$ in terms of the matrices
$\textbf{C}^{-1}$ and $\textbf{D}^{-1}$.


\bigskip


ANSWER

$(\textbf{CD})^{-1}=\textbf{D}^{-1}\textbf{C}^{-1}$




\end{document}
</pre></body></html>