The equation of sides `BC, CA, AB` of a triangle `ABC` are `ax+by+c=0, lx + my + n=0` and `px+qy+r=0
Channel: Doubtnut
Date: 12/04/2020

The equation of sides `BC, CA, AB` of a triangle `ABC` are `ax+by+c=0, lx + my + n=0` and `px+qy+r=0` respectively, then the line : `(px+qy+r)/(ap+bq) = (lx+my+n)/(al+mb)` is (A) perpendicular to AB (B) perpendicular to AC (C) perpendicular to BC (D) none of these