Question

find the product,AB,if possible
[0 -3] [-2 0]
A=[2 1 ],B= [-11 ]
would it be
[0 6] [-3 3] [-4 -2] [3 -3]
A.[-2 1], B.[-3 -5],c. [2 4],or D.[-5 1]

Answer 1

matrix AB will be a 2x2 matrix

Answer 2

This is because matrix A has 2 rows (first dimension of AB) and matrix B has 2 columns (second dimension of AB)

Answer 3

To find the value that goes in row1,column1 for matrix AB, you multiply the numbers in row 1 of matrix A by the corresponding numbers in column 1 of matrix B

this gives you

0*(-2) + (-3)*(-1)

0 + 3

3

So the value 3 goes in row1,column1 of matrix AB

Answer 4

so would it be (A)

Answer 5

why do you say that

Answer 6

So far AB looks like this



where we will replace those X values with numbers once we find those values