Math 22 Derivatives of Logarithmic Functions

Derivative of the Natural Logarithmic Function

 Let $u$ be a differentiable function of $x$.
 1.${\frac {d}{dx}}[\ln x]={\frac {1}{x}}$ for $x>0$
 
 2.${\frac {d}{dx}}[\ln u]={\frac {1}{u}}{\frac {du}{dx}}$ for $u>0$

Return to Topics Page

This page were made by Tri Phan