If e and l are respectively the eccentri...

If `e and l` are respectively the eccentricity and length of latus rectum of hyperbola `x^2/a^2-y^2/b^2=1` such that `e^2=11/14l`. If `e' & l'` are the eccentricity and latus rectum of the conjugate hyperbola and `(e')^2 =11/8 l'` then the value of `77a+44b` is

A

100

B

110

C

120

D

130

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The correct Answer is:

D

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