The equation of the circumcricle of the `x^(2)-8x+12=0 and y^(2)-14y+45=0` is

The equation of the directrix of the parabola x^(2) - 4x - 8y + 12 = 0 is (i) y = 0 (ii) x - 1 = 0 (iii) y+ 1 = 0 (iv) x + 1 = 0

The diagonal of the rectangle formed by the lines x^2-7x +6= 0 and y^2-14y +40= 0 is

Three sides of a triangle are represented by lines whose combined equation is (2x+y-4) (xy-4x-2y+8) = 0 , then the equation of its circumcircle will be : (A) x^2 + y^2 - 2x - 4y = 0 (B) x^2 + y^2 + 2x + 4y = 0 (C) x^2 + y^2 - 2x + 4y = 0 (D) x^2 + y^2 + 2x - 4y = 0

The parametric equation of the circle x^(2)+y^(2)+8x-6y=0 are

Find the equation of the image of the circle x^(2)+y^(2)-6x-4y+12=0 by the line mirror x+y-1=0

Centre of the circle inscribed in a rectangle formed by the lines x^2 - 8x+12 = 0 and y^2 - 14y +40=0 is

The equation of the circle passing through (1,2) and the points of intersection of the circles x^2+y^2-8x-6y+21=0 and x^2+y^2-2x-15=0 is

Find the equation of the circle which is concentric with x^(2)+y^(2)+8x+12y+15=0 and passing through (2,3).

The centre of circle inscribed in a square formed by lines x^2-8x+12=0 and y^2-14 y+45=0 is (4,7) (7,4) (9,4) (4,9)

The centre of circle inscribed in a square formed by lines x^2-8x+12=0 and y^2-14 y+45=0 is a. (4,7) b. (7,4) c. (9,4) d. (4,9)