Mathematics for IGCSE & O level - Vectors (Section 4 - No. 45)

If vector a is [1, 2] and b is [-1, 0], which is a - 3b?

[4, 2]

[-2, 2]

[1, 6]

[2, 0]

Vysvětlení

First do 3b = [-3, 0], then subtract.

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