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** Q 2612245130. ** Find the value of `λ` so that the lines ,

` (1-x)/3 = (y-2)/(2 lamda) = (z-3)/2` and ` (x-1)/(3 lamda) = (y - 1)/1 = (6 - z)/7` are perpendicular to each other.

**CBSE-12th 2009 **