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Tangent as the External Angle Bisector
At a point $$p$$ on the ellipse, the tangent bisects the external angle between the focal radii.
$$\angle(S_1PT)=\angle(TPS_2)$$
Usage
- Used in reflection-property and tangent-angle problems.
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Tangent as the External Angle Bisector
At a point $$p$$ on the ellipse, the tangent bisects the external angle between the focal radii.
$$\angle(S_1PT)=\angle(TPS_2)$$
Usage
- Used in reflection-property and tangent-angle problems.
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