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If the tangent at any point P on the el...

If the tangent at any point P on the ellipse `x^(2)/a^(2) + y^(2)/b^(2) = 1` meets the tangents at the verticles A and A' in L and L' respectively, then `AL * A' L' = `

A

`a^(2)`

B

`b^(2)`

C

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

D

ab

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The correct Answer is:
B
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