Question

How do you multiply `((0, 2, 1), (-5, -1, 0))` and `((1, -4, 0), (1, 5, -1))`?

Answer 1

They cannot be multiplied as number of rows of first matrix is `2` and number of columns of the second matrix B is `3`

Explanation:

The general rule is that an `nxxp` matrix A (with n rows and p columns) can be multiplied by a `pxxm` matrix B (with p rows and m columns) to form an `nxxm` matrix AB = C.

This means that that number of rows of first matrix A must be equal to number of columns of the second matrix B.

In the given cases, as number of rows of first matrix is `2` and number of columns of the second matrix B is #3, they cannot be multiplied.