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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

a) `2`

B

b) `4`

C

c) `6`

D

d) `8`

Text Solution

Verified by Experts

The correct Answer is:
D
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