Find the parametric equation of the circles : `3x^2 + 3y^2 + 4x-6y - 4 = 0`

Find the parametric equations of that circles : 3x^2 + 3y^2 =4

Find the parametric equation of the circles : x^2 + y^2 + 2x - 4y - 1 =0

Find the parametric equation of the circles : x^2 + y^2 - 2x+4y-4=0

Find the parametric equations of that circles : 2x^2 + 2y^2 - 5x - 7y-3=0

Find the parametric equation of the circles : (i) 2x^(2) + 2y^(2) - 5x - 7y - 3 = 0 (ii) 3x^(2) + 3y^(2) + 4x - 6y - 4 = 0 .

Find the parametric equation of the circle x^(2)+y^(2)+x+sqrt(3)y=0

Write the parametric equations of the circle x^(2)+y^(2)-2x-4y-4=0

Find the parametric representation of the circles : (i) 3x^(2) + 3y^(2) = 4 . (ii) ( x - 2)^(2) + (y - 3)^(2) = 5 .

(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.

Equation of the circle concentric with the circle x^(2) + y^(2) - 4x - 6y - 3 = 0 , and touching Y-axis , is