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As per your syllabus, the cross product of two PARALLEL vectors is which?
AZero vector
BHalf the magnitudes
CA scalar A·B
DTwice the magnitudes
Answer & Solution
Correct answer: A. Zero vector
Your syllabus: sin 0° = sin 180° = 0 ⇒ A × B = 0 if A ∥ B. In particular A × A = 0.
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