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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

2

C

3

D

4

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The correct Answer is:
D
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HIMALAYA PUBLICATION-HYPERBOLA-QUESTION BANK
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