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GCSE Mathematics · key term
A vector formed by multiplying another vector by a number, such as .
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Specification HG25 · Paper 1, Paper 2
Revise: Geometric Arguments and Vector ProofsThus, if two non-zero vectors are scalar multiples, their supporting lines have the same direction: they are parallel or lie on the same line. This is the central connection between vector algebra and geometry.
To prove parallel lines, show that the complete vector expressions are scalar multiples, not just that one pair of coefficients matches.
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