Question

Dadas as matrizes: Calcule:

A) = (2 3 / 1 4) B) = ( 3 -1 / -2 4)

a) a + b =
b) b - a =

Answer 1

a) a+b
[2 3] + [3 -1] = [5 2]
[1 4]    [-2 4]    [-1 8]

b) b - a
[2 3] - [3 -1] = [-1 4]
[1 4]   [-2 4]    [3 0]