Which integral represents the volume of a sphere of radius RRR?
π∫−RR(R2−x2)dx\pi \int_{-R}^R (R^2 - x^2) dxπ∫−RR(R2−x2)dx
2π∫0R(R2−x2)dx2\pi \int_0^R (R^2 - x^2) dx2π∫0R(R2−x2)dx
∫0RπR2dx\int_0^R \pi R^2 dx∫0RπR2dx
4π∫0Rx2dx4\pi \int_0^R x^2 dx4π∫0Rx2dx