Practice problem
A=[3−524]B=[113−421]A = \begin{bmatrix} 3 & -5 \\ 2 & 4 \end{bmatrix}\\ B = \begin{bmatrix} 1 & 1 & 3 \\ -4 & 2 & 1\end{bmatrix}A=[32−54]B=[1−41231]
What is ABABAB?
[3−50−880]\begin{bmatrix} 3 & -5 & 0 \\ -8 & 8 & 0 \end{bmatrix}[3−8−5800]
[23−14−710410]\begin{bmatrix} 23 & -14 \\ -7 & 10 \\ 4 & 10 \end{bmatrix}23−74−141010
[23−74−141010]\begin{bmatrix} 23 & -7 & 4 \\ -14 & 10 & 10 \end{bmatrix}[23−14−710410]
[−14101023−74]\begin{bmatrix} -14 & 10 & 10 \\ 23 & -7 & 4 \end{bmatrix}[−142310−7104]
These matrices cannot be multiplied.
Type a concept, like “slope” or “photosynthesis”.
