Question

Calcular a soma dos termos da PG infinita (3; 9/10; 9/100; 9/1000;...)​

Answer 1

q = 9/10 . 1/3

q = 3/10

S = a1/(1-q)

S = 3/(1-3/10)

S = 3/(7/10)

S = 3 . 10/7

S = 30/7

Resposta: 30/7