\(
{\lim }\limits_{n \to \infty } \left( {1 + \frac{1}{{2^4 }} + \frac{1}{{3^4 }} + ... + \frac{1}{{n^4 }}} \right) = \frac{{\pi ^2 }}{90}
\)
Euler si pi
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Theodor Munteanu
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Euler si pi
La inceput a fost numarul. El este stapanul universului.
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Virgil Nicula
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