Question

Find the product AB, if possible.

Answer 1

Using some logic and common sense we notice that A is a 2 x 3 and and B is 3 x 1 hence multiplication is possible. The matrix we get as the answer will be a 2 x 1 and the only option with a 2 x 1 matrix is B.

Answer 2

@ExplainItLikeImFive do you understand?

Answer 3

Yes, that was a good explanation. Thanks

Answer 4

Of course had this question not been a multiple-choice one, we would've had to work out the multiplication manually.