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 x^(2)y^(2)-9y^(2)-6x^(2)y+54y=0 represents (a)a pair of straight lines and a circle (b)a pair of straight lines and a parabola (c)a set tof four straight lines forming a square (d)none of these

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

If the equation 3x^(2)-2y^(2)+lamda xy -x+5y-2=0 represents a pair of straight lines then lamda=

The equation x^(2)+y^(2)+2x-4y+5=0 represents a.a point b.a pair of straight lines c.a circle of non zero radius d.none of these

Show that the equation 2x^(2) + xy - y^(2) + x + 4y - 3 = 0 represents a pair of lines.

If the equation 2x^(2)+4xy-2y^(2)+4x+8y+k=0 represents a pair of line, then k=

If the equation x^(2)+3xy+2y^(2)+x-y+k=0 represents a pair of line, then k=

If the equation 2x^(2)+2hxy +6y^(2) - 4x +5y -6 = 0 represents a pair of straight lines, then the length of intercept on the x-axis cut by the lines is equal to

Prove that the equation 2x^(2)+5xy+3y^(2)+6x+7y+4=0 represents a pair of straight lines.Find the coordinates of their point of intersection and also the angle between them.