MATEMÁTICA| Progressão Geométrica

1) Determine a soma dos oito primeiros termos da PG (320, 160, 80, ...)

DICA:
[tex]a1 = 320 \\ q = \frac{1}{2} \\ s8 = 320 \times \frac{ \frac{1}{2} ^{7} - 1}{ \frac{1}{2} - 1 } [/tex]

(MR✔️) Resposta confiável!!! ❤​
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