Consider the matrices
$A$A$=$= | and | $B$B$=$= |
Matrix $A$A has dimensions $\editable{}$$\times$×$\editable{}$
Matrix $B$B has dimensions $\editable{}$$\times$×$\editable{}$
Is $A+B$A+B possible?
Yes
No
Consider the matrices
$A$A$=$= | and | $B$B$=$= |
Consider the matrices
$A$A$=$= | , | $B$B$=$= | and | $C$C$=$= |
Consider the matrices
$A$A$=$= | , | $B$B$=$= | and | $C$C$=$= |