HARD
12th CBSE
IMPORTANT
Earn 100

An aeroplane is flying along the line r=λ(i^-j^+k^); where ' λ ' is a scalar and another aeroplane is flying along the line r=i^-j^+μ(-2j^+k^); where ' μ ' is a scalar. At what points on the lines should they reach, so that the distance between them is the shortest? Find the shortest possible distance between them.

Important Questions on Three Dimensional Geometry

MEDIUM
12th CBSE
IMPORTANT
If the direction cosines of a line are <1c,1c,1c>, then