Question

find the centre, area and circumference of a circle with equation 2x square + 2y square - 8x- 2y + 1 = 0.
{ answer: (2,3), 275/7square unit, 22.22 unit}​

Answer 1

Answer:

Given the equation of the circle is 

2x2+2y2−x=0

or, x2+y2−2x=0

or, x2−2.x.41+421+y2=421

or, (x−41)2+y2=421.

From this equation we've the center is (41,0) and radius is 41.

Answer 2

find the centre, area and circumference of a circle with equation 2x square + 2y square - 8x- 2y + 1 = 0.

{ answer: (2,3), 275/7square unit, 22.22 unit}