Question

Responder com cálculos

Answer 1

Resposta:

$x = \frac{1 + \frac{1 }{3} }{1 - \frac{1}{3} } \\ x = \frac{ \frac{3 + 1}{3} }{ \frac{3 - 1}{3} } \\ x = \frac{4}{3} \times \frac{3}{2} \\ x = \frac{12}{6} \\ x = 3$