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UrbanXrisis
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question is http://home.earthlink.net/~urban-xrisis/q.jpg [Broken]
answer for b is http://home.earthlink.net/~urban-xrisis/a.jpg [Broken]
My question is, why did the book use [tex]4\pi x^2 \Delta x[/tex] as the formula for volume? isn't that the derivative of the volume? since mass=density*volume, shouldn't the equation for volume be [tex]\frac{4}{3} \pi r^3[/tex]
answer for b is http://home.earthlink.net/~urban-xrisis/a.jpg [Broken]
My question is, why did the book use [tex]4\pi x^2 \Delta x[/tex] as the formula for volume? isn't that the derivative of the volume? since mass=density*volume, shouldn't the equation for volume be [tex]\frac{4}{3} \pi r^3[/tex]
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