vault backup: 2025-11-04 09:05:28
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@ -1,2 +1,6 @@
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$\vec{v} = x\vec{i} + y\vec{j}$
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$\vec{v} = x\vec{i} + y\vec{j}$
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$\vec{v} = (x, y)$
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**Exemplo:** Sejam $v = (-1, 4)$ e $u = (2, -3)$ encontre $3u + 2v$
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$3(2, -3) + 2(-1, 4)$
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