Compute AB, if possible.
-$$A = \left[ \begin{array} { r r }
- 1 & 3 \
5 & 4
\end{array} \right] \text { and } B = \left[ \begin{array} { l l l }
0 & - 2 & 6 \
1 & - 3 & 2
\end{array} \right]$$
A) $\left[ \begin{array} { r r } 3 & 4 \ - 7 & - 22 \ 0 & 38 \end{array} \right]$
B) not possible
C) $\left[ \begin{array} { r r r } 3 & - 7 & 0 \ 4 & - 22 & 38 \end{array} \right]$
D) $\left[ \begin{array} { r r r } 0 & - 6 & 8 \ 5 & - 12 & 8 \end{array} \right]$

Question

Compute AB, if possible.
-$$A = \left[ \begin{array} { r r } 
- 1 & 3 \
5 & 4
\end{array} \right] \text { and } B = \left[ \begin{array} { l l l } 
0 & - 2 & 6 \
1 & - 3 & 2
\end{array} \right]$$
A) $\left[ \begin{array} { r r } 3 & 4 \ - 7 & - 22 \ 0 & 38 \end{array} \right]$
B) not possible
C) $\left[ \begin{array} { r r r } 3 & - 7 & 0 \ 4 & - 22 & 38 \end{array} \right]$
D) $\left[ \begin{array} { r r r } 0 & - 6 & 8 \ 5 & - 12 & 8 \end{array} \right]$

Quizplus · Accepted Answer

The product AB is possible because the number of columns in A (2) matches the number of rows in B (2). The resulting matrix will be a 2x3 matrix.

Compute AB, If Possible A) [34−7−22038]\left[ \begin{array} { r r } 3 & 4 \\ - 7 & - 22 \\ 0 & 38 \end{array} \right]​3−70​4−2238​​

Compute AB, If Possible A) $\left[ \begin{array} { r r } 3 & 4 \\ - 7 & - 22 \\ 0 & 38 \end{array} \right]$