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If e and e’ are eccentricities of hyperb...

If e and e’ are eccentricities of hyperbola and its conjugate respectively, then

A

`((1)/(e))^(2) + ((1)/(e'))^(2)=1`

B

`(1)/(e)+ (1)/(e')= 1`

C

`((1)/(e))^(2)+ ((1)/(e'))^(2)= 0`

D

`(1)/(e) = (1)/(e')= 2`

Text Solution

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The correct Answer is:
A
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