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For hyperbola (x^(2))/(cos^(2)alpha)-(y^...

For hyperbola `(x^(2))/(cos^(2)alpha)-(y^(2))/(sin^(2)beta)=1` which of the following remains constant with change in `alpha`

A

Abscissae of vertices

B

Abscissae of foci

C

Eccentricity

D

Directrix

Text Solution

Verified by Experts

The correct Answer is:
B
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