Question

How do you multiply the matrices `((1, 2), (3, 4))` with `((5, 6, 7), (8, 9, 10))`?

Answer 1

Remember that the values of the row-column of the product are equal to the sum of the first matrix's row times the second matrix's column.

Explanation:

`((1,2),(3,4))xx((5,6,7),(8,9,10))`

`color(white)("XXX")=((1xx5+2xx8,1xx6+2xx9,1xx7+2xx10),(3xx5+4xx8,3xx6+4xx9,3xx7+4xx10))`

`color(white)("XXX")=((21, 24,27),(47,54,61))`