I need to find where .

I know that the definition says that this distance is the greatest lower bound of . So the distance between and then I am not sure what to do.

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- October 11th 2010, 09:00 AMtarheelbornDistance from a point to a set
I need to find where .

I know that the definition says that this distance is the greatest lower bound of . So the distance between and then I am not sure what to do. - October 11th 2010, 02:04 PMPlato
The easy way is to write the equation of the line through .

Find the its intersection with the circle.

One of those two points is the closest. - October 11th 2010, 02:19 PMtarheelborn
Thanks so much! I had made this problem quite hard by trying to use polar coordinates, but this method is much simpler. Thank you so much!