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The region R is bounded by the y-axis, y = 4 and y = x^2. Which of these expressions represents the volume of the solid formed by revolving R about the x-axis?

a.
\int\limits^2_0 { \pi (16-x^4)} \, dx
b.
\int\limits^2_0 { \pi (4 - x^2)^2} \, dx
c.
\int\limits^2_0 { \pi (16-x^4)^2} \, dx
d.
\int\limits^2_0 {2\pi x(4 - x^2)} \, dx
e. None of the above

User Dommer
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1 Answer

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I believe this one would be C


User Steve Nyholm
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