Locus of the point of intersection of the tangents which meet at right angles is called.

Directrix

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Director circle

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Auxiliary circle

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None of these

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Solution

The correct option is B
Director circle

The above given statement is the definition of director circle. The equation of director circle for $\frac{x^{2}}{a^{2}} + \frac{y^{2}}{b^{2}} = 1 i s x^{2} + y^{2} = a^{2} + b^{2}$ .

Suggest Corrections

Similar questions

α

\frac{x^{2}}{a^{2}} - \frac{y^{2}}{b^{2}} = 1

β

\frac{x^{2}}{a^{2}} + \frac{y^{2}}{b^{2}} = 1

\frac{x^{2}}{a^{2} + λ} + \frac{y^{2}}{b^{2} + λ} = 1

y^{2} = 4 a x

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