Given $A = \left[ \begin{array} { c c }
3 & - 1 \
2 & 2
\end{array} \right]$
and $B = \left[ \begin{array} { c c }
2 & 3 \
- 1 & 5
\end{array} \right]$
, find $A B$
, or explain why the operation cannot be performed.

Question

Given $A = \left[ \begin{array} { c c } 
3 & - 1 \
2 & 2
\end{array} \right]$ 
and $B = \left[ \begin{array} { c c } 
2 & 3 \
- 1 & 5
\end{array} \right]$ 
, find $A B$ 
, or explain why the operation cannot be performed.

Quizplus · Accepted Answer

The Answer of Given $A = \left[ \begin{array} { c c } 
3 & - 1 \
2 & 2
\end{array} \right]$ 
and $B = \left[ \begin{array} { c c } 
2 & 3 \
- 1 & 5
\end{array} \right]$ 
, find $A B$ 
, or explain why the operation cannot be performed.

Given A=[3−122]A = \left[ \begin{array} { c c } 3 & - 1 \\2 & 2\end{array} \right]A=[32​−12​]

Given $A = \left[ \begin{array} { c c } 3 & - 1 \\2 & 2\end{array} \right]$