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A circle S cuts three circles x^2+y^2-4x...

A circle S cuts three circles `x^2+y^2-4x-2y+4=0`
`x^2+y^2-2x-4y+1=0`
and `x^2+y^2+4x+2y+1=0` orthogonally. Then the radius of S is

A

`sqrt((29)/(8))`

B

`sqrt((28)/(11))`

C

`sqrt((29)/(7))`

D

`sqrt((29)/(5))`.

Text Solution

Verified by Experts

The correct Answer is:
A
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