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Sum and Difference of Focal Distances
For any point $$p$$ on the ellipse:
$$PS_1+PS_2=2a$$
$$PS_1-PS_2=2c\cos\theta$$
Usage
- Used together to determine the individual focal distances.
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Sum and Difference of Focal Distances
For any point $$p$$ on the ellipse:
$$PS_1+PS_2=2a$$
$$PS_1-PS_2=2c\cos\theta$$
Usage
- Used together to determine the individual focal distances.
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