Question

Sendo A = 2 1 3 2 e B = 1 3 -2 5 , determine :
a ) A x B
b ) B x A

Answer 1

Resposta:

a: 2x1: 2 + 1x3: 3 + 3x(-2): -6 + 2x5:10

2+3+(-6)+10= -9

b: 1x2: 2 + 3x1:3 + (-2)x3: -6 + 5x2: 10

2+3+(-6)+10= -9

so inverter kk