How do you differentiate y=ln(-x)? Calculus Differentiating Logarithmic Functions Differentiating Logarithmic Functions with Base e 1 Answer Andrea S. Jan 25, 2017 d/(dx) (ln(-x)) = 1/x Explanation: Using the chain rule with y= -x: d/(dx) (ln(-x))= ((d(ln(-x)))/(d(-x)))( (d(-x))/(dx)) = (1/(-x))(-1) = 1/x Answer link Related questions What is the derivative of f(x)=ln(g(x)) ? What is the derivative of f(x)=ln(x^2+x) ? What is the derivative of f(x)=ln(e^x+3) ? What is the derivative of f(x)=x*ln(x) ? What is the derivative of f(x)=e^(4x)*ln(1-x) ? What is the derivative of f(x)=ln(x)/x ? What is the derivative of f(x)=ln(cos(x)) ? What is the derivative of f(x)=ln(tan(x)) ? What is the derivative of f(x)=sqrt(1+ln(x) ? What is the derivative of f(x)=(ln(x))^2 ? See all questions in Differentiating Logarithmic Functions with Base e Impact of this question 19020 views around the world You can reuse this answer Creative Commons License