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Chord of Contact from an External Point
For:
$$y^2=4ax$$
the chord of contact from $$(x_1,y_1)$$ is:
$$yy_1=2a(x+x_1)$$
Usage
- Used to find the line joining the two points of contact of tangents drawn from an external point.
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Chord of Contact from an External Point
For:
$$y^2=4ax$$
the chord of contact from $$(x_1,y_1)$$ is:
$$yy_1=2a(x+x_1)$$
Usage
- Used to find the line joining the two points of contact of tangents drawn from an external point.
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