Respostas

2013-11-30T10:47:24-02:00
A1 = 1/3
q = a1/a1
q = 1/9 / 1/3
q = 1/9 . 3
q = 3/9
q = 1/3
Sn = a1/(1-q)
Sn = 1/3 / (1-1/3)
Sn = 1/3 / (3/3-1/3)
Sn = 1/3 / 2/3
Sn = 1/2
1 3 1