Mathematics · Vector Algebra
Let a be a non-zero vector parallel to the line of intersection of the two planes described by i + j, i + k and i - j, j - k. If θ is the angle between the vector a and the vector b = 2i - 2j + k, and a · b = 6, then the ordered pair (θ, |a × b|) is equal to:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1(π/4, 3√6)
- 2(π/3, 3√6)
- 3(π/3, 6)
- 4(π/4, 6)✓
Correct answer
(π/4, 6)
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