Unformatted text preview: The circulary region in the xy plane bounded by ( x & a ) 2 + y 2 = r 2 is revolved around the y axis. Find the volume of the resulting donut shaped region (called a torus). 2. Please do (a) 6.1# 20, 48 (b) 6.2# 30(c,d) 1...
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 Spring '09
 CHEUNG
 Math, Calculus, Euclidean geometry, washer shaped element, carefully drawn sketch

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