Distance Between the Foci and a Vertex
For the right vertex $$A(a,0)$$:
$$AS_2=c-a$$
$$AS_1=c+a$$
Usage
- Used in focal-distance problems involving a vertex.
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CAT Formulas
Hyperbola
Distance Between the Foci and a Vertex
Distance Between the Foci and a Vertex
For the right vertex $$A(a,0)$$:
$$AS_2=c-a$$
$$AS_1=c+a$$
Usage
- Used in focal-distance problems involving a vertex.
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