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Let P be any point on a directrix of an ellipse of eccentricity e, S be the corresponding focus and C be the centre of the ellipse. The line PC meets the ellipse at A. The angle between PS and tangent at A is `alpha`. Then `alpha` is equal to

A

`tan^(-1)e`

B

`tan^(-1)(1//e)`

C

`pi/2`

D

`pi/4`

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The correct Answer is:
C
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MCGROW HILL PUBLICATION-ELLIPSE-Exercise (Level 1 Single Correct)
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