Let Psx1, y1d be a point on the ellipse x 2 ya2 1 y 2 yb2 1 with foci F1 and F2 and let
Chapter 10, Problem 65(choose chapter or problem)
Let Psx1, y1d be a point on the ellipse x 2 ya2 1 y 2 yb2 1 with foci F1 and F2 and let and be the angles between the lines
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