Parallel lines condition (Jee Mains) | ExamDuo
Ask Doubts
Log in
3D Line Equations and Skew
Easy
Parallel lines condition
Lines r = a₁ + tb₁ and r = a₂ + sb₂ are parallel if :
SELECT ONE OPTION
A
b₁ = λb₂ for some real λ
B
b₂ is parallel to a₂ – a₁
C
b₁ is parallel to a₂ – a₁
D
None of these
Check
Ask about this question