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For more information, please see full course syllabus of Calculus AB

For more information, please see full course syllabus of Calculus AB

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Post by Steve Denton on October 18, 2012

At 9:o5.That answer doesn't make any sense. How could the volume get 8pi*r^2 times bigger. It only gets 27 times bigger when it goes from r=1 to r=3. From r=13 to r=15 the V only gets 1.5 times bigger.???????

The ratio seems like it should be (r+2)^3 / r^3