`x^(2) -y^(2) +5x +8y -4=0 ` represents

If the equation a^(2) x^(2) + (a^(2) - 5a + 4) xy + (3a - 2) y^(2) - 8x + 12y - 4 = 0 represents a circle , then : a =

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

Show that the equation 3x^(2)+4y^(2)-12x-8y+4=0 represents an ellipse. Find the focus also

The equation 5x ^(2) + y^(2) + y=8 represents

The equation 5x ^(2) + y^(2) + y=8 represents

The equation of directrices of the hyperbola 5x^(2) -4y^(2) -30x -8y -39 =0 are

The equation of directrices of the hyperbola 5x^(2) -4y^(2) -30x -8y -39 =0 are

The distanc of the point (1,-2) from the common chord of the circles x^(2) + y^(2) - 5x + 4y - 2 = 0 " and " x^(2) + y^(2) - 2x + 8y + 3 = 0

The equation 8x^2+12y^2-4x + 4y-1=0 represents

The distance of the point (1,-2) from the common chord of the circles x^(2) + y^(2) - 5x +4y - 2= 0 " and " x^(2) +y^(2) - 2x + 8y + 3 = 0