Answer:
Let's have a matrix [M]
The aditive identity for matrix arithmetic would be [M]+[0]=[0]+[M]
Step-by-step explanation:
Let [0] be a full-zero matrix
[tex][0]=\left[\begin{array}{ccc}0&0&0\\0&0&0\\0&0&0\end{array}\right][/tex]
If we add [0] for any [M] matrix, the [M] matrix won't change.
Then [M]+[0]=[0]+[M]=[M]