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Distance Between Parallel Tangents
For the pair:
$$lx+my=\pm\sqrt{a^2l^2+b^2m^2}$$
the perpendicular distance between them is:
$$d=\frac{2\sqrt{a^2l^2+b^2m^2}}{\sqrt{l^2+m^2}}$$
Usage
- Used to find the separation between two parallel tangents.
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Distance Between Parallel Tangents
For the pair:
$$lx+my=\pm\sqrt{a^2l^2+b^2m^2}$$
the perpendicular distance between them is:
$$d=\frac{2\sqrt{a^2l^2+b^2m^2}}{\sqrt{l^2+m^2}}$$
Usage
- Used to find the separation between two parallel tangents.
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