Question

calculati suma:
$\frac{1}{3} + \frac{1}{ {3}^{2} } + \frac{1}{{3}^{3} } + \frac{1}{ {3}^{4} } + \frac{1}{ {3}^{5} } + \frac{1}{ {3}^{6} }$
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Answer 1

Răspuns:

Sper ca te am ajutat!

Coroana?