### Proof: d/dx(ln x) = 1/x

Learn more: http://www.khanacademy.org/video?v=yUpDRpkUhf4Taking the derivative of ln x

Length:
09:52

Learn more: http://www.khanacademy.org/video?v=yUpDRpkUhf4Taking the derivative of ln x

Length:
09:52

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