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Cristian Calude, proba pe echipe, R.III, P.IV
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Cristian Calude, proba pe echipe, R.III, P.IV
Posted:
Thu Nov 06, 2008 5:17 pm
by
Laurian Filip
Sa se calculeze
\( \int \frac{2(arctgx - \frac{x}{1+x^2})}{(x+arctgx)(x-arctgx)}dx \)
,
\( x\in (0, \infty) \)
.