Equation of a circle - A'Level Maths Boost

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Lines and circles

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The equation of a circle centred at (3, -4) and radius 5 is

(x )^2 + (y )^2 =

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The equation of a circle centred at (-6, 8) and radius 10 is

(x )^2 + (y )^2 =

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The equation of a circle centred at (4, 7) and radius 6 is

(x )^2 + (y )^2 =

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