The value of the lambda, if the lines (2x+3y+4)+1 (6x-y+12)=0 are 4ii) Perpendicular to


Question:

The value of the lambda, if the lines (2x+3y+4)+1 (6x-y+12)=0 are
4
ii) Perpendicular to 7x+y-4=0 is
iii)passes through (1,2) is​

 


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