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Mar 14, 2017 at 19:18 history edited ZeroTheHero CC BY-SA 3.0
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Mar 14, 2017 at 17:33 answer added Farcher timeline score: 1
Mar 14, 2017 at 17:18 comment added user148528 @JayJay Yeah, i do get the derivation of $dr$ part but the conceptual difference between my solution and this one that's supposedly right is what troubles me.
Mar 14, 2017 at 17:17 comment added GeeJay Take the derivative of r with respect to $\theta$
Mar 14, 2017 at 16:55 review First posts
Mar 14, 2017 at 19:18
Mar 14, 2017 at 16:54 history asked user148528 CC BY-SA 3.0