What is the definition of an ellipse

The video tutorial reviews the definition of a parabola, focusing on the concepts of focus and directrix, and explains that any point on a parabola is equidistant from the focus and directrix. It then introduces ellipses, describing them as distorted circles or two parabolas focusing on each other. The key property of an ellipse is that the sum of the distances from any point on the ellipse to the two foci is constant. This property is explained with examples, emphasizing the difference from parabolas.

Explain the significance of the focus and directrix in the context of a parabola.

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What is the definition of a parabola as discussed in the text?

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What is the relationship between the distances from the foci to any point on an ellipse?

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Describe the concept of a constant number in relation to the distances in an ellipse.

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How does the definition of an ellipse differ from that of a parabola?

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