Question

Find the centre and radius of the circle 2x^{2} +2y^{2}- 16x + 20y = 24

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.