# math

Wha is a vertex, a focus, an eccentricity, and a latus rectum

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1. depends on the conic section.

google is your friend. Just look up "parabola" or "ellipse" etc for many discussions of their properties.

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posted by Steve
2. Its on the ellipse. Google isn't helping.

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posted by ej
3. that's rubbish.

Just typing in ellipse, I got many hits, and as usual, wikipedia had a very good article.

https://en.wikipedia.org/wiki/Ellipse

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posted by Steve

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