Proof: the derivative of ln(x) is 1/x | Advanced derivatives | AP Calculus AB | Khan Academy

how do we know the derivative of ln(x) is 1/x (the definition & implicit differentiation)

Take the derivative of the natural log function

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Derivative of ln(x) | Advanced derivatives | AP Calculus AB | Khan Academy

Derivative of 1/lnx || Differentiation of 1/lnx

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Why is the derivative of lnx equal to 1/x?

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