Question

resolva as matrizes ​

Answer 1

Resposta:

a) (3 3 / 4 6)

b) (3 3 / 4 6)

c) (5 7 / 5 7)

d) (4 4 / 8 8)

Explicação passo a passo:

Resolução:

A = (1 1 / 1 1)

B = (2 2 / 3 5)

a) A+B:

(1 1 / 1 1)+(2 2 / 3 5) = (1+2 1+2 / 1+3 1+5) =

= (3 3 / 4 6)

b) B+A:

(2 2 / 3 5)+(1 1 / 1 1) = (2+1 2+1 / 3+1 5+1) =

= (3 3 / 4 6)

c) A×B:

(1 1 / 1 1)×(2 2 / 3 5) = (1×2+1×3 1×2+1×5 / 1×2+1×3 1×2+1×5) = (2+3 2+5 / 2+3 2+5) = (5 7 / 5 7)

d) B×A:

(2 2 / 3 5)×(1 1 / 1 1) = (2×1+2×1 2×1+2×1 / 3×1+5×1 3×1+5×1) = (2+2 2+2 / 3+5 3+5) =

= (4 4 / 8 8)

Eu espero ter ajudado :)