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Vectors: magnitude, direction and products

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Vector notation, opposites and unit directions

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Source roles from pages 2–3: directed a and its scalar length; a and −a on equal grids; a nonzero a and its unit direction; position OA relative to origin and displacement AB between two points. Illustrations are schematic, with no added numerical conditions.
Source roles from pages 2–3: directed a and its scalar length; a and −a on equal grids; a nonzero a and its unit direction; position OA relative to origin and displacement AB between two points. Illustrations are schematic, with no added numerical conditions.
Source roles from pages 2–3: directed a and its scalar length; a and −a on equal grids; a nonzero a and its unit direction; position OA relative to origin and displacement AB between two points. Illustrations are schematic, with no added numerical conditions.
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