" 8."x^(2)+y^(2)-8x+10y-12=0

Find the centre and radius of circles. x^(2)+y^(2)-8x+10y-12=0 .

In each the following find the centre and radius of circles. x^(2)+y^(2)-8x+10y-12=0 .

In each the following find the centre and radius of circles. x^(2)+y^(2)-8x+10y-12=0 .

Find the centre and radius of the circles x^(2)+y^(2)-8x+10y-12=0

In each the following find the centre and radius of circles. x^(2)+y^(2)-8x+10y-12=0 .

Find the centre and radius of the circle : X^(2)+y^(2)-8x+10y-12 =0 ?

Find the centre and radius of the circle : x^2 + y^2- 8x+ 10y- 12 = 0 .

The radius of the circle : x^2 + y^2-8x + 10y- 12 =0 is:

The number of direct common tangents that can be drawn to the circles x^(2)+y^(2)+4x-6y-12=0 and x^(2)+y^(2)-8x+10y+16=0 is/are

Find the equation of tangent to the circle x^(2)+y^(2)-8x-10y-8=0 which are parallel to 12y-5x+2=0