The equation of second degree `x^2+2sqrt2x+2y^2+4x+4sqrt2y+1=0` represents a pair of straight lines.The distance between them is a. 4 b. `4/sqrt3` c. 2 d. `2sqrt3`

The equation of second degree x^2+2sqrt2xy+2y^2+4x+4sqrt2y+1=0 represents a pair of straight lines.The distance between them is

The equation of second degree x^2+2sqrt2xy+2y^2+4x+4sqrt2y+1=0 represents a pair of straight lines.The distance between them is

The equation of second degree x^(2)+2sqrt(2)x+2y^(2)+4x+4sqrt(2)y+1=0 represents a pair of straight lines.The distance between them is a.4 b.(4)/(sqrt(3)) c.2 d.2sqrt(3)

The equation of second degree x^2 + 2sqrt2 xy + 2y^2 + 4x + 4 sqrt2 y + 1 = 0 represents a pair of straight lines, the distance between them is :

The equation of second degree x^(2)+2 sqrt(2) x y+2 y^(2)+4 x+4 sqrt(2) y+1=0 represents a pair of parallel lines, then the distance between them is

The equation sqrt((x - 2)^2 + y^2) + sqrt((x+2)^2 + y^2) = 4 represents

The equation sqrt(x^2 + 4y^2 - 4xy+4) +x-2y=1 represent a (A) straight line (B) circle (C) parabola (D) pair of lines

The equation sqrt(x^2 + 4y^2 - 4xy+4) +x-2y=1 represent a (A) straight line (B) circle (C) parabola (D) pair of lines