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Vettori e geometria analitica in R3

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17 / 25<br />

Prodotto scalare<br />

È immediato notare che<br />

⃗u·⃗u=|⃗u| 2 (10)<br />

⃗u·⃗v=⃗v·⃗u<br />

(λ⃗u)·⃗v=λ(⃗u·⃗v)=⃗u·(λ⃗v) ∀ λ ∈R.

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