Question

olhem a foto, me ajudem pfv​

Answer 1

A • B = 2³/2 • 3¹²/3¹³ = 4 • 1/3 = 4/3

Answer 2

Resposta:

Letra B

Explicação passo-a-passo:

$A={2^{15}\times2^{-12}\over2}\\ \\ A={2^{15-12}\over2}\\ \\ A={2^3\over2}\\ \\ A=2^3\div2=2^{3-1}=2^2=4\\ \\ B={3^{12}\over3^{13}}=3^{12-13}=3^{-1}={1\over3}\\ \\ A .B=4.{1\over3}={4\over3}$