what is AB?
A= 3 , 5 B = 4
2 , 8 -7
this is a matrix, but it wont let me put in the brackets
a=
3, 5
2, 8
and b =
4
-7
nvm i got this one
hope you got
-23
-48
To get the product AB of two matrices A and B, we need to perform matrix multiplication. Matrix multiplication involves taking the dot product of each row of matrix A with each column of matrix B. In this case, we have a 2x2 matrix A and a 2x1 matrix B.
The product AB can be calculated as follows:
AB = (3 * 4 + 5 * -7) = (12 - 35)
(2 * 4 + 8 * -7) (8 - 56)
Simplifying further, we have:
AB = (-23)
(-48)
Therefore, the product of matrices A and B is:
AB = -23
-48