December 2019 1 257 Report
[Soma de sequência, Somatórios com Complexos]

Calcule o valor da soma, para n natural, tal que n > 1:

S = sen\left(\dfrac{2\pi}{n}\right)+sen\left(\dfrac{4\pi}{n}\right) + sen\left(\dfrac{6\pi}{n}\right) +\dots+sen\left(\dfrac{2(n-1)\pi}{n}\right)



Gabarito: S = 0
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