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### Question Asked by a Student from EXXAMM.com Team

** Q 2606501478. ** .Find the value of p, so that the lines `l_1 : (1 -x) /3 = ( 7 y-14 )/p = (z -3)/2` and ` l_2 : (7 -7 x)/(3 p) = ( y -5 ) /1 = (6 -z ) /5` are perpedicular to each other . Also find equations of line passing through a pint (3, 2 - 4 ) and parallel to line `l_1`

**CBSE-12th 2014 **