The locus of the centre of the circle wh...

The locus of the centre of the circle which cuts a chord of length 2 a from the positive x-axis and passes through a point on positive y - axis distant b from the origin is

A

`x^(2) + 2by = b^(2) + a^(2)`

B

`x^(2) - 2by = b^(2) + a^(2)`

C

`x^(2) +2by =a^(2) -b^(2)`

D

` x^(2) - 2by = b^(2) - a^(2)`

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The correct Answer is:

C

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