Equation `x^(2) +k_(1)y^(2) +2k_(2)y = a^(2)` represents a pair of perpendicular straight lines if

The equation x^(2)+k_(1)y^(2)+k_(2)xy=0 represents a pair of perpendicular lines if

Equation x^(2)+m_(1)y^(2)+m_(2)xy=0 jointly represents a pair of perpendicular lines if

The equation (x^(2)+y^(2))(h^(2)+k^(2)-a^(2))=(hx+ky)^(2) represents a pair of perpendicular lines if

The equation (x^(2)+y^(2))(h^(2)+k^(2)-a^(2))=(hx+ky)^(2) represents a pair of perpendicular lines if

Prove that the equation 2x^(2)+3xy-2y^(2)-x+3y-1=0 represents a pair of perpendicular straight lines.

If the equation x^(2)+py^(2)+y=a^(2) represents a pair of perpendicular lines,then the point of intersection of the lines is

a(x^(2)-y^(2))+xy=0 represents a pair of straight lines for

a(x^(2)-y^(2))+xy=0 represents a pair of straight lines for

If the equation (kx+y)^(2)=k(x^(2)+y^(2)) represents a pair of perpendicular lines, then k=