Posted by hadia on Monday, September 5, 2011 at 6:08pm.
find the volume of the solid obtained by revolving the region bounded by the graphs of y=2+4xx^2 and y=2 about the line y=2.

calculus 2  Mgraph, Monday, September 5, 2011 at 6:59pm
y2=4xx^2
The volume=pi*Int.[0,4](4xx^2)^2dx=
pi*Int.[0,4](16x^28x^3+x^4)dx=
pi*(16/3x^32x^4+1/5x^5)[0,4]=
pi*(1024/3512+1024/5)=pi*1024/30
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