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Sum of Focal Distances
For any point $$p$$ on the ellipse:
$$PS_1+PS_2=2a$$
Usage
- Fundamental property used in focal-distance and locus problems.
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Sum of Focal Distances
For any point $$p$$ on the ellipse:
$$PS_1+PS_2=2a$$
Usage
- Fundamental property used in focal-distance and locus problems.
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