Show that if all the normal lines to a plane curve pass through the origin then the curve is part of a circle.
I don't really have any idea on how to start with this. Any help is appreciated.
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Show that if all the normal lines to a plane curve pass through the origin then the curve is part of a circle.
I don't really have any idea on how to start with this. Any help is appreciated.
try to show the curvature is constant, and > 0.