Matrix Multiplication (VCE SSCE General Mathematics): Quizzes

Yes, the inner numbers match (both 3)

$5 \times 4$

$23$

$AB \neq BA$ generally

$\begin{bmatrix} 1 & 0 \\ 0 & 1 \end{bmatrix}$

$A$

$A \times A \times A$

Need matching dimensions to multiply by itself

No, inner numbers are $5$ and $3$

260 USD