Let and be the lengths of the perpendicular drawn from foci and of the ellipse to the tangent at any point on the ellipse. Then, |
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a) |
b) |
c) |
d) |
Let and be the lengths of the perpendicular drawn from foci and of the ellipse to the tangent at any point on the ellipse. Then, |
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a) |
b) |
c) |
d) |
(a)
Tangent at is
(i)
Distance of focus from this tangent is
Distance of focus from this line
Now and