Question

Somatório da P.A (5,10,15,...300)

Answer 1

300 = 5 + (n -1) 5

300 = 5 + 5n - 5

5n = 300

n = 300/5

n = 60

S60 = (5 + 300)*60/2

S60 = 305 * 30 

S60 = 9150

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16/12/2015
Sepauto - SSRC
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