Given the following matrices, find 3A - 2B. (Hint: find 3A and 2B first and then subtract.)

A = [1 3] B=[4 9] [ 5 - 2 1] [-1 2 1

[ 5 2] [0 3] C = [ 0 - 8 6] D = [6 - 6 4

[-4 4 - 4] [2 - 8 3

Question

Mathematics

Johan Ingram

27 October, 22:05

Given the following matrices, find 3A - 2B. (Hint: find 3A and 2B first and then subtract.)

A = [1 3] B=[4 9] [ 5 - 2 1] [-1 2 1

[ 5 2] [0 3] C = [ 0 - 8 6] D = [6 - 6 4

[-4 4 - 4] [2 - 8 3

+5

Answers (1)

Know the Answer?

Paola Gregory · Answer 1

Its A

When you multiply a constant k to a matrix, you multiply all the corresponding numbers in the matrix by k.

So 3A would be = 3 9 15 6 and 2b would be = 8 18 0 6 Now subtract it. to get your answer

Given the following matrices, find 3A - 2B. (Hint: find 3A and 2B first and then subtract.)A = [1 3] B=[4 9] [ 5 - 2 1] [-1 2 1[ 5 2] [0 3] C = [ 0 - 8 6] D = [6 - 6 4[-4 4 - 4] [2 - 8 3

Given the following matrices, find 3A - 2B. (Hint: find 3A and 2B first and then subtract.)

A = [1 3] B=[4 9] [ 5 - 2 1] [-1 2 1

[ 5 2] [0 3] C = [ 0 - 8 6] D = [6 - 6 4

[-4 4 - 4] [2 - 8 3