Question

Session 9: Matrix Multiplication

Answer 1

Seems like the answer to problem (i) in the solutions is incorrect.
\[\left[\begin{matrix}1 & 3 \\ 4 & 5\end{matrix}\right] *\left[\begin{matrix}1 & 3 \\ 4 & 5\end{matrix}\right]\] = \[\left[\begin{matrix}13 & 8 \\ 24 & 37\end{matrix}\right]\]


...should read...
\[\left[\begin{matrix}13 & 18 \\ 24 & 37\end{matrix}\right]\]

Is the correct?

Answer 2

yes, they probably have a typo

your answer is correct.