If the dot product of two nonzero vectors A and B is zero then the magnitude of their cross product is?
Answer: AB
Explanation
If A · B = 0, it means the vectors A and B are perpendicular.
The magnitude of the cross product is:
|A × B| = |A||B|sinθ
For perpendicular vectors, θ = 90°, so sin(90°) = 1
⇒ |A × B| = AB × 1 = AB
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