If l,m,n and a,b,c are direction cosines of two lines then
If l,m,n and a,b,c are direction cosines of two lines then
they are parallel when la + mb + nc = 0
they are perpendicular when \(\frac{l}{a}=\frac{m}{b}=\frac{n}{c}\)
the direction ratios of the bisectors of the angles between l±a, m±b, n±c
the direction ratios of the bisectors of the angles between l±a, m±b, n±c
The Correct Option is C
Solution and Explanation
The correct option is: (C) the direction ratios of the bisectors of the angles between l±a, m±b, n±c
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