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A rectangular hyperbola whose centre is ...

A rectangular hyperbola whose centre is C is cut by any circle of radius r in four points P,Q,R and S . Then `CP^2+CQ^2+CR^2+CS^2` equals .

A

`4r^2`

B

`3r^2`

C

`2r^2`

D

`r^2`

Text Solution

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The correct Answer is:
A
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