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Director Circle
For a hyperbola:
$$\frac{x^2}{a^2}-\frac{y^2}{b^2}=1$$
the director circle is:
$$x^2+y^2=a^2-b^2$$
Usage
- Used to find the locus of the intersection of perpendicular tangents, when such real points exist.
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Director Circle
For a hyperbola:
$$\frac{x^2}{a^2}-\frac{y^2}{b^2}=1$$
the director circle is:
$$x^2+y^2=a^2-b^2$$
Usage
- Used to find the locus of the intersection of perpendicular tangents, when such real points exist.
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