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OpenStudy (anonymous):
Find the area of the surface obtained by rotating the curve y=4x^3 from x=0 to x=4 about the x-axis.
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OpenStudy (anonymous):
= [x^4] from 0 to 4 = 16
OpenStudy (anonymous):
take the derivative of 4x^3 and plug in into the formula myin gave you
OpenStudy (anonymous):
is f(x) just x?
OpenStudy (anonymous):
no f(x) would be 4x^3
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