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Vettori e geometria analitica in R3

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Prodotto scalare<br />

16 / 25<br />

DEFINIZIONE: Siano⃗u=[u 1 ,u 2 ,u 3 ] e⃗v=[v 1 ,v 2 ,v 3 ] due vettori.<br />

Il loro prodotto scalare, denotato⃗u·⃗v, è def<strong>in</strong>ito da:<br />

⃗u·⃗v=u 1 v 1 + u 2 v 2 + u 3 v 3 (<br />

3<br />

∑<br />

i=1<br />

u i v i ). (9)

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