Area bounded by the circle which is conc...

Area bounded by the circle which is concentric with the ellipse `x^2/(25) +y^2/9=1` and which passes through `(4,-9/5)` , the vertical chord common to both circle and ellipse on the positive side of x-axis is

A

`(481)/25 tan^(-1)(9/20)-36/5 `

B

`2 tan^(-1)(9/20)`

C

`(481)/25 tan^(-1)(9/20)`

D

none of these

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The correct Answer is:

A

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