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The line segment joining the foci of the...

The line segment joining the foci of the hyperbola `x^(2)-y^(2)+1=0` is one of the diameters of a circle. The equation o f the circle is

A

`x^(2)+y^(2)=4`

B

`x^(2)+y^(2)=sqrt2`

C

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

D

`x^(2)+y^(2)=2sqrt2`

Text Solution

Verified by Experts

The correct Answer is:
C
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