Solutions
Solutions to Try Its
1. 2. 3. center: ; vertices: ; co-vertices: ; foci:
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Solutions to Odd-Numbered Exercises
1. An ellipse is the set of all points in the plane the sum of whose distances from two fixed points, called the foci, is a constant. 3. This special case would be a circle. 5. It is symmetric about the x-axis, y-axis, and the origin. 7. yes; 9. yes; 11. ; Endpoints of major axis and . Endpoints of minor axis and . Foci at . 13. ; Endpoints of major axis and . Endpoints of minor axis . Foci at . 15. ; Endpoints of major axis . Endpoints of minor axis . Foci at . 17. ; Endpoints of major axis . Endpoints of minor axis . Foci at . 19. ; Endpoints of major axis . Endpoints of minor axis . Foci at . 21. ; Endpoints of major axis . Endpoints of minor axis . Foci at . 23. ; Endpoints of major axis . Endpoints of minor axis . Foci at . 25. ; Endpoints of major axis . Endpoints of minor axis . Foci at . 27. Foci 29. Focus 31. Foci 33. Center , Vertices , Foci
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