Ola antony
∫ x²/(x² + 1) dx = ∫ (x² + 1 - 1)/(x² + 1) dx =
∫ dx - ∫ 1/(x² + 1) dx = x - arctg(x) + const
pronto
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Ola antony
∫ x²/(x² + 1) dx = ∫ (x² + 1 - 1)/(x² + 1) dx =
∫ dx - ∫ 1/(x² + 1) dx = x - arctg(x) + const
pronto