If the lines represented by `3y^(2)+9xy+kx^(2)=0` are perpendicular to eachother then `k=`

If the lines represented by kx^(2) - 3xy + 6y^(2) = 0 are perpendicular to each other then…..

The two lines represented by 3ax^(2)+5xy+(a^(2)-2)y^(2)=0 are perpendicular to each other for

The two lines represented by 3ax^(2)+5xy+(a^(2)-2)y^(2)=0 are perpendicular to each other for

If one of the lines represents by 3x^(2)-4xy+y^(2)=0 is perpendicular to one of the line 2x^(2)-5xy+ky^(2)=0 then k=

If the pair of lines represented by equation k(k-3)x^(2)+16xy+(k+1)y^(2)=0 are perpendicular to each other,then find k .

Let L be the line joining the origin to the point of intersection of the lines represented by 2x^(2)-3xy-2y^(2)+10x+5y=0 . If L is perpendicular to the line kx+y+3=0 then k=

Let L be the line joing the origin to the point of interesection of the lines represecnted by 2x^(2)-3xy-2y^(2)+10x+5y=0 . If L is perpendicular to the line kx+y+3=0, then k=