Question

sabendo q A=1/3 - 3/4 e B= -2/3 + 1/2,. qual é o valor de A x B alguém sabe?? plmds​

Answer 1

Resposta: a resposta é 5/72

Explicação passo a passo:

A = 1/3 - 3/4 = 4/12 - 9/12 = - 5/12

B = -2/3 + 1/2 = -4/6 + 3/6 = -1/6

A x B = -5/12 x -1/6 = 5/72

Answer 2

a•b

(1/3−3/4)•(−2/3+1/2)

=(1/3+−3/4)•(−2/3+1/2)

=(1/3)(−2/3)+(1/3)(1/2)+(−3/4)(−2/3)+(−3/4)(1/2)

=(−2/9)+(1/6)+(1/2)+(-3/8)

=5/72