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$(a \pm c, b \pm d) = (a, b) \pm (c, d)$

När två eller flera vektorer adderas och/eller subtraheras beräknas resultantens koordinater genom att lägga ihop

x

- och

y

-koordinater på samma sätt som vektorerna läggs ihop, t.ex.

(2, 4) + (6, 0) - (8, 3) = (2 + 4 - 8, 4 + 0 - 3) = (- 2, 1) .

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