calculus, volume , application of integration
posted by Robert .
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Consider the curve f(x)=x^4 between x = 1 and x = 4.
a)What is the volume obtained by revolving the area under the curve around the xaxis?
b)What is the volume obtained by revolving the area under the curve (i.e. between f(x) and the xaxis) around the line y = 5?

Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the given lines.
y=x^2 ,y=4xx^2
the x axis b) the line y=6