Question

What will be the dimensions of the resulting matrix found by multiplying a 2 by 5 matrix and a 5 by 3?

Answer 1

Dim. will be `2xx3`.

Explanation:

We know that, in the usual notation,
`[A]_(mxxn)` `*` `[B]_(nxxp)`
`=[A*B]_(mxxp)`

Hence, the dim. of the resulting matrix will be `2xx3`.