hitunglah volume benda putar pada kurva y = x^2, x = 0, x = 4 menggelilingi sumbu x

[tex]\int_{0}{4}{\pi y^{2}} \,dx=\int_{0}{4}{\pi(x^{2})^{2}} \,dx[/tex]
[tex]=\int_{0}{4}{\pi x^{4}} \,dx[/tex]
[tex]=\pi\frac{1}{5}x^{5} |^{4}_{0}[/tex]
[tex]=\pi\frac{1}{5}4^{5}-\pi\frac{1}{5}0^{5}[/tex]
[tex]=\frac{1024\pi}{5}[/tex]