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. A water tank is in the form of an inverted frustum as shown in Figure Q5: The radii of the top and the bottom circles are 80 cm and 36 cm respectively. Let h cm be the height of the water in the tank at time t second (s): 80 cm
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I worked some on this earlier, and botched it a bit, so here goes again. A water tank is made by rotating f(x)=2^x1 between [0,2] about the yaxis. The water tank is initially full, when a hole is opened at the bottom tip so that
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