Two lines r = a₁ + λb₁ and r = a₂ + μb₂ are given. If b₁ × b₂ = 0, then the lines are:
Two lines r = a₁ + λb₁ and r = a₂ + μb₂ are given. If b₁ × b₂ = 0, then the lines are:
- A. Intersecting
- B. Perpendicular
- C. Parallel
- D. Skew lines
Answer: C) Parallel
Explanation: The cross product of their direction vectors being zero implies the direction vectors are parallel, hence the lines are parallel.
0 Answers
Log in to post your own answer or join the discussion.
No comments yet — start the discussion.