Condition for a Point to Lie Outside the Ellipse
A point $$P(x_1,y_1)$$ lies outside the ellipse when:
$$\frac{x_1^2}{a^2}+\frac{y_1^2}{b^2}>1$$
Usage
- Used to determine whether real tangents can be drawn from the point.
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CAT Formulas
Ellipse
Condition for a Point to Lie Outside the Ellipse
Condition for a Point to Lie Outside the Ellipse
A point $$P(x_1,y_1)$$ lies outside the ellipse when:
$$\frac{x_1^2}{a^2}+\frac{y_1^2}{b^2}>1$$
Usage
- Used to determine whether real tangents can be drawn from the point.
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