Question

Calcule a soma dos termos da PG (1/3, 2/9, 4/27, ...) ?

Answer 1

Resposta:Sn=1

Explicação passo-a-passo:

a1=1/3,q=a2/a1--->q=2/9/1/3--->q=6/9:3/3--->q=2/3,Sn=?

Sn=a1/1-q

Sn=1/3/1-2/3

Sn=1/3/3/3-2/3

Sn=1/3/1/3

Sn=3/3

Sn=1