Question

Determie a matriz X tal que X – A + B = 0, dados A = ( 3 −2 5 )e B = ( 1 −2 4 ).

Answer 1

[ a b c] - [3 -2 5] = [1 -2 4]

a - 3 = 1 -----> a = 4

b - (-2) = -2 ---> b = -4

c - 5 = 4 ---> c = 1

Logo X = [4 -4 1]

Answer 2

Resposta:

x = A - B

x = [ 3 -2 5 ] - [ 1 -2 4 ] = 2