Question

Qual o valor de:3^-1+3^-2

Answer 1

${3}^{ - 1} + {3}^{ - 2}$

$(3 + 1) \times {3}^{ - 2}$

$4 \times {3}^{ - 2}$

$4 \times \frac{1}{ {3}^{2} }$

$4 \times \frac{1}{9}$

$\frac{4}{9}$

$0.4$