Find the centre and radius of each of the following `(i) x² + y^2 + 4x - 4y + 1 = 0 `

Find the centre and radius of each of the following (i)x^(2)+y^(2)+4x-4y+1=0

Find the centre and radius of each of the following: x^2+y^2-2x+4y-4=0

Find the centre and radius of each of the following: 4x^2+4y^2-24x-8y-24=0

Find the centre and radius of each of the following: 3x^2+3y^2-6x+4y-1=0

Find the centre and radius of each of the following circle: x^2+y^2-4x+6y=5

Find the centre and radius of each of the following circle: (x-1)^2+y^2=4

Find the centre and radius of each of the following: x^2+y^2-6x-8y-24=0

Find the centre and radius of each of the following circle : (i) x^(2)+y^(2)+4x-4y+1=0 (ii) 2x^(2)+2y^(2)-6x+6y+1=0 (iii) 2x^(2)+2y^(2)=3k(x+k) (iv) 3x^(2)+3y^(2)-5x-6y+4=0 (v) x^(2)+y^(2)-2ax-2by+a^(2)=0

Find the centre and radius of each of the following circle: x^2+y^2-x+2y-3=0