Question

Calcule a soma dos termos da PA (3, 5, 7, 9, 11, 13, 15, 17)

Answer 1

Resposta:

A soma será 80.

Explicação passo-a-passo:

$S=\frac{(3 + 17).8}{2}\\\\S=\frac{20.8}{2} \\\\S=\frac{160}{2}\\\\S= 80$