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Tangent to Circle at Origin
For a circle passing through the origin:
$$x^2+y^2+2gx+2fy=0$$
the tangent at the origin is:
$$gx+fy=0$$
Usage
- Used directly when the circle passes through the origin and the tangent is required at the origin.
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Tangent to Circle at Origin
For a circle passing through the origin:
$$x^2+y^2+2gx+2fy=0$$
the tangent at the origin is:
$$gx+fy=0$$
Usage
- Used directly when the circle passes through the origin and the tangent is required at the origin.
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