Thread: spherical coordinates

Use spherical coordinates to find the centroid of the solid in the first octant bounded by the coordinate planes and the sphere x^2 + y^2 + z^2 = a^2 .

Can you tell me, in the question, why x bar = y bar = z bar? Thank you very much.

Originally Posted by kittycat

Use spherical coordinates to find the centroid of the solid in the first octant bounded by the coordinate planes and the sphere x^2 + y^2 + z^2 = a^2 .

Can you tell me, in the question, why x bar = y bar = z bar? Thank you very much.

what are the lines of symmetry in the xy-, yz- and xz-planes? what does this say about x_bar, y_bar and z_bar?