I'm having a hard time following a taylor expansion that contains vectors...
The Attempt at a Solution
Here's how I would expand it:
-GMR/R^3 - GMr/R^3 + 3GMR/R^5*(R + r) + 3GMR/R^5(r + R)
So you take d/dR(R^2 + r^2 + 2r dot R)^5/2 and then take d/dr ?
I am basing my knowledge of multidimensional expansions off of what wikipedia is telling me, but I can't quite see how that r dot R term comes about
Anyone have any ideas?
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