Mathematics for IGCSE & O level - Vectors (Section 6 - No. 27)

If vector a = [2, 3] and scalar k = 2, what is ka?

[4, 6]

[4, 9]

[0, 1]

[8, 12]

Vysvětlení

ka = 2 * [2, 3] = [4, 6]

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