Question Detail
Question
Vectors A and B are given as A = 3i + 4j - 2k and B = 2i - 6j + 3k. What is the angle between vectors A and B?
Correct Answer
Option D is the correct answer.
Detailed Explanation
A·B = -24, |A| = √29, |B| = 7. cosθ = -24/(7√29) ≈ -0.637. θ ≈ 129.5°.
Hint
Use A·B = |A||B|cosθ.