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Mathematics for IGCSE & O level - Vectors (Section 3 - No. 8)

Given vector a = [3, 1] and b = [-1, 2], what is the result of a - b?
[2, -1]
[4, -1]
[4, -1]
[2, 3]

解释

Subtract the corresponding components of b from a: (3 - (-1), 1 - 2) = (4, -1).

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