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(a±c,b±d)=(a,b)±(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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