Don't know the steps in finding this derivative.
But the derivative is
The answer is:
4*x / 4*x*cos(x) \ log (2*sin(x))*|4*log(log(2*sin(x))) + --------------------| \ log(2*sin(x))*sin(x)/
/ 2 2 \ | 2*cos(x) x*cos (x) x*cos (x) | | x - -------- + --------- + ---------------------| | 2 sin(x) 2 2 | 4*x | / x*cos(x) \ sin (x) log(2*sin(x))*sin (x)| 4*log (2*sin(x))*|4*|-------------------- + log(log(2*sin(x)))| - ------------------------------------------------| \ \log(2*sin(x))*sin(x) / log(2*sin(x)) /
/ 2 2 3 3 3 / 2 2 \\ | 3*cos (x) 3*cos (x) 2*x*cos (x) 2*x*cos(x) 2*x*cos (x) 3*x*cos (x) 3*x*cos(x) / x*cos(x) \ | 2*cos(x) x*cos (x) x*cos (x) || | -3 - --------- - --------------------- + ----------- + ---------- + ---------------------- + --------------------- + -------------------- 12*|-------------------- + log(log(2*sin(x)))|*|x - -------- + --------- + ---------------------|| | 3 2 2 3 sin(x) 2 3 3 log(2*sin(x))*sin(x) \log(2*sin(x))*sin(x) / | sin(x) 2 2 || 4*x | / x*cos(x) \ sin (x) log(2*sin(x))*sin (x) sin (x) log (2*sin(x))*sin (x) log(2*sin(x))*sin (x) \ sin (x) log(2*sin(x))*sin (x)/| 4*log (2*sin(x))*|16*|-------------------- + log(log(2*sin(x)))| + ----------------------------------------------------------------------------------------------------------------------------------------- - -------------------------------------------------------------------------------------------------| \ \log(2*sin(x))*sin(x) / log(2*sin(x)) log(2*sin(x)) /