3.9: Derivatives of Ln, General Exponential & Log Functions; and
https://math.libretexts.org/Courses/Monroe_Community_College/MTH_210_Calculus_I_(Professor_Dean)/Chapter_3%3A_Derivatives/3.9%3A_Derivatives_of_Ln_General_Exponential_and_Log_Functions_and_Logarithmic_Differentiation
WEBDec 21, 2020 · dy dx = 1 x. Suppose the argument of the natural log is not just x, but instead is g(x), a differentiable function. Now, using the chain rule, we get a more general derivative: for all values of x for which g(x) > 0, the derivative of h(x) = ln(g(x)) is given by. h′ (x) = 1 g ( x) g′ (x).
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