Question
A circle with radius r and centred at (0,0) is given parametrically by x = r cost, y = r sint, 0 t 2.
A circle with radius r and centred at (0,0) is given parametrically by x = r cost, y = r sint, 0 t 2. Using the parametric equations, evaluate an appropriate integral to verify that the surface area of a sphere is given by 47.
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Calculus Early Transcendentals
Authors: James Stewart
8th edition
1285741552, 9781305482463 , 978-1285741550
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