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The product of the perpendiculars from t...

The product of the perpendiculars from the foci on any tengent to the ellipse `x^2/a^2 + y^2/b^2 = 1` is

A

`a^2`

B

`b^2`

C

`a^2-b^2`

D

`sqrt(a^2 + b^2)`

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The correct Answer is:
B
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