I'm trying to find the line element in spherical coordinates as well as a velocity element. I know that they are (ds)^2=(dr)^2+r^2(sin(theta))^2(dtheta)^2+r^2(dphi)^2 and sqrt[(dr/dt)^2+r^2(sin theta)^2(dtheta/dt)^2+r^2(dphi/dt)^2].(adsbygoogle = window.adsbygoogle || []).push({});

I know that this should be a quick and easy problem, but I simply can not figure it out. I would really appreciate some help on this one.

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# Spherical Coordinates

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