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asgar
.primate.

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esercizio ricorrente

ciao a tutti, ho visto che cercare le primitive di ln²(x) ricorre parecchio nei temi d'esame (anche negli integrali definiti) qualcuno può spiegarmi come si risolve? nelle soluzioni è risolto per parti ma io proprio non ci arrivo :shock: grazie :)

26-06-2009 13:05
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karplus
.grande:maestro.

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Ecco qui:




Il trucco sta nel risolverlo per parti come se fosse 1*ln^2(x).
Nel secondo passaggio bisogna fare la derivata composta di ln^2(x), bisogna starci attenti.
Al quarto passaggio bisogna fare per parti ln(x), interpretandolo sempre come 1*ln(x).

27-06-2009 11:03
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