3.2 Calculate the areas of the following surfaces using the differential surface area dS: (a) p = 2, 0 < z< 5, 7/3 < ¢ < T/2 (b) z = 1, 1 < p < 3, 0 < ¢ < T/4 (c) r = 10, 7/4 < 0 < 2#/3, 0 < ¢ < 2™ (d) 0 < r< 4, 60° < 0 < 90°, & = constant

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