turunan dari (Ln 1/x), tolong ya?

* (d/dx)ln(1-x) = (1/(1-x))(d/dx)(1-x) = (1/(1-x))(-1) = -1/(1-x) 
* (d/dx)ln(1+x) = (1/(1+x))(d/dx)(1+x) = (1/(1+x))(1) = 1/(1+x) 
Semoga Bener…

Berdasarkan dalil rantai, akan diperoleh:
y = ln(1/x)

Diperoleh:
dy/dx
= d ln(1/x) / dx
= [d ln(1/x)]/[d (1/x)]. [d (1/x)]/[dx]
= 1/(1/x). (-x⁻²)
= x. (-x⁻²)
= -1/x