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Condition for Two Real Tangents
Two distinct real tangents can be drawn from $$P(x_1,y_1)$$ when:
$$\frac{x_1^2}{a^2}+\frac{y_1^2}{b^2}>1$$
Usage
- Used to check whether an external point admits two real tangents to the ellipse.
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Condition for Two Real Tangents
Two distinct real tangents can be drawn from $$P(x_1,y_1)$$ when:
$$\frac{x_1^2}{a^2}+\frac{y_1^2}{b^2}>1$$
Usage
- Used to check whether an external point admits two real tangents to the ellipse.
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