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let \vecu = \langle 4, 5, -6 \rangle e \vecv = \langle 0, -2, -3 \rangle, calcule \vecu*\vecv
let \vecu = \langle 4, 5, -6 \rangle e \vecv = \langle 0, -2, -3 \rangle, calcule \vecu*\vecv
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