Chapter 11: Parametric Equations and Polar Coordinates - Section 11.3 - Polar Coordinates - Exercises 11.3 - Page 662: 1

(a) and (e) label the same point (b) and (g) label the same point (c) and (h) label the same point (d) and (f) label the same point

Convert to rectangular coordinates, $(x,y)=(r\cos\theta,r\sin\theta).$ (see table screenshot, below) The pairs labeling the same point: (a) and (e) label the same point (b) and (g) label the same point (c) and (h) label the same point (d) and (f) label the same point