Question

If A and B are matrices such that A+B and BA are both defined, then *
1. A and B can be any matrices
2. A, B are square matrices not necessarily of same order
3. A, B are square matrices of same order
4. number of columns of A= number of rows of B​

Answer 1

Answer:

don't know the answer sorry

Answer 2

Answer:

1st number

A and B can be any matrices