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The locus of the foot of the perpendicul...

The locus of the foot of the perpendicular from the foci an any tangent to the ellipse `x^(2)/a^(2) + y^(2)/b^(2) = 1`, is

A

`l=a^(2), m=b^(2)`

B

`l=b^(2), m=a^(2)`

C

l=m=a

D

l=m=b

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A
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