Find the centre and radius of the circle whose equation is .

MATHEMATICS · Subjective · A Level · Mathematics · Coordinate geometry in the (x y) plane · Coordinate geometry in the (x y) plane

Problem

Find the centre and radius of the circle whose equation is x2+y2+8x−6y+12=0x^2 + y^2 + 8x - 6y + 12 = 0.

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