Respostas

2014-05-27T10:57:55-03:00
An=a1+(n-1).r
a10=1,87+(10-1).0,004
a10=1,87+9.0,004
a10=1,87+0,0036
a10=1,906

Sn=(a1+an).n/2
S10=(1,87+1,906).10/2
S10=(3,776).5
S10=18,88
5 3 5
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