The number of points in the locus represented by the equation `x^(2)+y^(2)=0` is equal

The locus represented by the equation (x-y+c)^(2)+(x+y-c)^(2)=0 is

Two lines represented by equation x^(2)+xy+y^(2)=0 are

The number of lines represented by the equation x^(2)=y^(2)=z^(2) , is ______________

The Curve represented by the equation 2x^(2)+xy+6y^(2)-2x+17y-12=0 is

The line x-2y=0 will be a bisector of the angle between the lines represented by the equation x^2-2hxy-2y^2=0 , if h is equal to

The equation x^(2)-7xy-y^(2)=0 represents

The limiting points of the system of circles represented by the equation 2(x^(2)+y^(2))+lambda x+(9)/(2)=0 , are

Express y in terms of x in the equation 2x-3y=12. Find the points whether the point (3,3) is on the line represented by the equation 3x+y-12=0

The equation x^(3)-yx^(2)+x-y=0 represents