Question

Tell whether the product BA is defined for A4x5 and B5x3. If yes, give the product's dimensions as the following example: 2x3. If no, write no in the box.

Answer 1

For two matrices to multiply together the number of columns of the first must match the number of rows of the second, If that matches the result will have the rows of the first and the columns of the second

Answer 2

*number of rows of the first and number of columns of the second