Respostas

2013-11-26T21:15:42-02:00
Q=12/3 → q=4
 S_{6} =a1(q^6-1)/q-1
 S_{6} =3(4^6-1)/6-1
 S_{6} =3(4096-1)/5
 S_{6} =3(4095)/5
 S_{6} =12285/5
 S_{6} =2457