Finding the order of the matrix product

[charlesjoy]

Can you verify my answer for me?

A is 2 X 1, B is 1 X 2

Answer: AB is 2 X 2, BA is 1 X 1

 

[Deleted member 4993]

Can you verify my answer for me?

A is 2 X 1, B is 1 X 2

Answer: AB is 2 X 2, BA is 1 X 1

Both Correct

 

[charlesjoy]

Thanks. Slowly picking it up. LOL!