[m]V_{Ox}=π ∫ ^{2}_{-2}(x^2)^2dx=π ∫ ^{2}_{-2}x^4dx=(\frac{x^5}{5})|^{2}_{-2}=π\frac{(2)^5}{5}-π\frac{(-2)^5}{5}=π\frac{64}{5}[/m]
