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Mathematics for IGCSE & O level - Vectors (Section 6 - No. 20)

If vector a = [x, y], what is -1 * a?
[-x, y]
[-x, -y]
[x, -y]
[x, y]

ব্যাখ্যা

Multiplying a vector by -1 reverses the direction. Each component reverses its sign.

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