Q. 93.5( 68 Votes )

In each of the following, find the centre and radius of the circles.

Answer :

The equation of the given of the circle 2x2 + 2y2 –x =0.


2x2 + 2y2 –x =0


(2x2 + x) +2y2 =0


+ y2= 0


+ (y - 0)2, which is of the form (x-h)2 + (y-k)2 =r2,


Where, h =  , k = 0, and r=


Thus, the centre of the given circle is , while its radius is .

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