Respostas

2014-08-14T10:57:24-03:00
Oi Dayane.

Basta usar a fórmula e resolver:

Sn=\frac { a1(q^{ n }-1) }{ q-1 } \\ \\ Sn=\frac { 5(2^{ 10 }-1) }{ 2-1 } \\ \\ Sn=\frac { 5(1024-1) }{ 1 } \\ \\ Sn=5*1023\\ Sn=5115
1 5 1
2014-08-14T11:12:32-03:00


S10 = 5 .2elevado a 10-1

s10= 5.1023

s10=5115