[" The equation "],[6x^(2)+xy-12y^(2)-13x+6y+6=0" represents "]

The equation 12x^(2)+7xy-12y^(2)-18x+y+6=0 represents

The equation 6x^(2)-xy-12y^(2)-8x+29y-14=0 represents a pair of lines, then the angle between them is ..............?

The equation 6x^(2)-xy-12y^(2)-8x+29y-14=0 represents a pair of lines, then the angle between them is ..............?

The equation x^(2)+4xy+4y^(2)-3x-6y-4=0 represents a

The equation x^(2)+4xy+4y^(2)-3x-6y-4=0 represents a

The equation 12x^(2)-2y^(2)-6z^(2)-2xy-8xy+6xz=0 represents

The equation x^(2)y^(2)-9y^(2)-6x^(2)y+54y=0 represents

The equation x^(2)y^(2)-9y^(2)-6x^(2)y+54y=0 represents

The equation x^(2)y^(2)-9y^(2)-6x^(2)y+54y=0 represents