Find the length of the curve with the given parametric equations (a) x = sin θ, y
Question:
(a) x = sin θ, y = cos θ for θ ¤ θ ¤ 2Ï
(b) x = sin 3θ, y = cos 3θ for 0 ¤ θ ¤ 2Ï
(c) Explain why the lengths in parts (a) and (b) are not equal
You can generate surfaces by revolving smooth curves, given parametrically, about a coordinate axis As t increases from a to b, a smooth nave x = F(t) and y = G(t) is traced out exactly once. Revolving this curve about the x-axis for y ¥ 0 gives the surface of revolution with surface area
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