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Mathematics for IGCSE & O level - Vectors (Section 5 - No. 31)
Given vector a = [3, -2], which of the following vectors is equal to -2a?
[6, -4]
[-6, 4]
[5, 0]
[-1, 4]
Forklaring
-2a = -2 * [3, -2] = [-6, 4]
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