Question

4. A taxa proporcional a 40% a.a é:
obs: com cálculo

Answer 1

Resposta:

Calculemos a taxa mensal que é equivalente à taxa anual de 40%:

$\left(1 + i \right)^{12} = 1,40\\\\\Longleftrightarrow 1 + i = 1,40^{\left(1 / 12\right)}\\\\\Longleftrightarrow 1 + i =1,0284\\\\\Longleftrightarrow \boxed{i = 0,0284 = 2,84\%\,\,a.m.}$