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For the hyperbola (x^(2))/(cos^(2) alph...

For the hyperbola ` (x^(2))/(cos^(2) alpha ) - (y^(2))/(sin^(2) alpha ) = 1` , where ` alpha ` is a
parameter, which of the following remains constant ?

A

abscissa of vertices

B

abscissa of foci

C

eccentricity

D

directrix

Text Solution

Verified by Experts

The correct Answer is:
B
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