If `ax^(2)+6xy+3y^(2)-10x+10y-6=0` represents a pair of perpendicular lines, then `|a|=`
Channel: Doubtnut
Date: 2020-06-28

If `ax^(2)+6xy+3y^(2)-10x+10y-6=0` represents a pair of perpendicular lines, then `|a|=`