Find the areas of the regions in the polar coordinate plane described in Exercises 47-50. 47. Enclosed by the limaçon r = 2 – cos 0 48. Enclosed by one leaf of the three-leaved rose r = sin 30 49. Inside the "figure eight"r = 1 + cos 20 and outside the circle 50. Inside the cardioid r = 2(1 + sin 0) and outside the circle r = 2 sin 0

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