1.

The direction cosines of two lines satisfy the relations λ(l+m)=n and mn+nl+lm=0.The value of λ, for which the two lines are perpendicular to each other, is

Answer»

The direction cosines of two lines satisfy the relations λ(l+m)=n and mn+nl+lm=0.The value of λ, for which the two lines are perpendicular to each other, is



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