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If e and e' be the eccentricities of a h...

If e and e' be the eccentricities of a hyperbolas `xy=c^2 and x^2-y^2=c^2 , ` then `e^2+e'2` equals :

A

1

B

4

C

6

D

8

Text Solution

Verified by Experts

The correct Answer is:
B
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