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Obtaining Centre and Radius of a Circle from General Equation of a Circle

If two distin...

Question

If two distinct chords of the circle $x^{2} + y^{2} - 2 x - 4 y = 0$ drawn from the point $P (a, b)$ are bisected by $x - a x i s$ then

(b + 2)^{2} > 4 a

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(b - 2)^{2} > 4 a

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(b - 2)^{2} > 2 a

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(b + 2)^{2} > a

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Solution

The correct option is A $(b + 2)^{2} > 4 a$

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