Question

Sabendo que A= 1/3-3/4 e B=-2/3+1/2
Calcule A .B

Answer 1

a = 1/3 - 3/4
a = (4 - 9)/12 = - 5/12

b = - 2/3 + 1/2
b = (- 4 +3)/6 = - 1/6

a.b = (-5/12) × (-1/6)
a.b = 5/72

Answer 2

Resposta:

5/72

Explicação passo-a-passo:

1/3 - 3/4

(4 - 9)/12 = - 5/12

- 2/3 + 1/2

(- 4 +3)/6 = - 1/6

(-5/12) × (-1/6)

5/72