`x^(2) + y^(2) - xy + 6x - 7y + 8 = 0 and x^(2) + y^(2) -xy -4=0` the axes being inclined at `120^(@)`.
Find the equation of the radical axis of circles

(i) Find the equation of a circle , which is concentric with the circle x^(2) + y^(2) - 6x + 12y + 15 = 0 and of double its radius. (ii) Find the equation of a circle , which is concentric with the circle x^(2) + y^(2) - 2x - 4y + 1 = 0 and whose radius is 5. (iii) Find the equation of the cricle concentric with x^(2) + y^(2) - 4x - 6y - 3 = 0 and which touches the y-axis. (iv) find the equation of a circle passing through the centre of the circle x^(2) + y^(2) + 8x + 10y - 7 = 0 and concentric with the circle 2x^(2) + 2y^(2) - 8x - 12y - 9 = 0 . (v) Find the equation of the circle concentric with the circle x^(2) + y^(2) + 4x - 8y - 6 = 0 and having radius double of its radius.

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

If x^(2) + y^(2) -3xy = 0 and x gt y then find the value of log_(xy)(x-y) .

Find the equation of the radical axis of circles x^(2)+y^(2)+x-y+2=0 and 3x^(2)+3y^(2)-4x-12=0

If the circle x ^(2) +y ^(2) - 6x - 8y + (25 -a ^(2)) =0 touches the axis of x, then a equals

Subtract 6xy - 4x^(2) - y^(2) - 2 from x^(2) - 3xy + 7y^(2) + 5

Equation of radical axis of the circles x^(2) + y^(2) - 3x - 4y + 5 = 0 and 2x^(2) + 2y^(2) - 10x - 12y + 12 = 0 is

Add: 4x^(2) - 7xy + 4y^(2) - 3, 5 + 6y^(2) - 8xy + x^(2) and 6 - 2xy + 2x^(2) - 5y^(2)