Question

This one is not that obvious to differentiate.
Help please?
f(u)=lnu / 1 + ln2u

Answer 1

quotient rule for this one

Answer 2

\[\left(fg\right)'=\frac{gf'-fg'}{g^2}\] with
\[f(x)=\ln(x), f'(x)=\frac{1}{x},g(x)=1+\ln(2x),g,(x)=\frac{1}{x}\]

Answer 3

Im an idiot.... Over thinking as usual...Thank you satellite73!!

Answer 4

yw
lots of ugly algebra i imagine