Mathematics for IGCSE & O level - Vectors (Section 4 - No. 46)
Given a = [1, 0] and b = [0, 1], what can you say about vectors a and b?
They are parallel.
They are perpendicular.
They are equal in magnitude.
They have the same direction.
Explanation
Vectors [1,0] and [0,1] are perpendicular (at a right angle) to each other.
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