alleryThe MAGNITUDE of a × b equals:
A|a|+|b|
B|a||b|sin θ
C|a|² + |b|²
D|a||b|cos θ
Answer & Solution
Correct answer: B. |a||b|sin θ
|ā × b̄| = |ā||b̄|sin θ where θ is the angle between vectors.
This equals the AREA of the parallelogram formed by ā and b̄.
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