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A water tank has the shape obtained by revolving the curve y=x^(4/3) (for x>0) around the y-axis. A plug in the bottom is removed at 12 noon, when the depth of water in the tank is 16 ft. At 2 P.M. the depth of the water is 7 ft. How many minutes will it take the tank to empty 請各位幫忙算一下,感激~~ 我算的數字怪怪的所以麻煩大家一下囉!!! -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 61.228.219.48