Don't know the steps in finding this derivative.
But the derivative is
The answer is:
/ / / ___\\ / 2/ ___\\ \ log(x)/ ___\ |log\tan\\/ x // \1 + tan \\/ x //*log(x)| tan \\/ x /*|--------------- + ------------------------| | x ___ / ___\ | \ 2*\/ x *tan\\/ x / /
/ 2 \ |/ / / ___\\ / 2/ ___\\ \ | ||2*log\tan\\/ x // \1 + tan \\/ x //*log(x)| | ||----------------- + ------------------------| 2 | || x ___ / ___\ | / / ___\\ 2/ ___\ / 2/ ___\\ / 2/ ___\\ / 2/ ___\\ | log(x)/ ___\ |\ \/ x *tan\\/ x / / log\tan\\/ x // 1 + tan \\/ x / \1 + tan \\/ x //*log(x) \1 + tan \\/ x // *log(x) \1 + tan \\/ x //*log(x)| tan \\/ x /*|----------------------------------------------- - --------------- + --------------- + ------------------------ - ------------------------- - ------------------------| | 4 2 3/2 / ___\ 2*x 2/ ___\ 3/2 / ___\ | \ x x *tan\\/ x / 4*x*tan \\/ x / 4*x *tan\\/ x / /
/ 3 / 2 \ \ |/ / / ___\\ / 2/ ___\\ \ / / / ___\\ / 2/ ___\\ \ | / / ___\\ / 2/ ___\\ / 2/ ___\\ / 2/ ___\\ / 2/ ___\\ | | ||2*log\tan\\/ x // \1 + tan \\/ x //*log(x)| |2*log\tan\\/ x // \1 + tan \\/ x //*log(x)| |4*log\tan\\/ x // 4*\1 + tan \\/ x // 2*\1 + tan \\/ x //*log(x) \1 + tan \\/ x // *log(x) \1 + tan \\/ x //*log(x)| | ||----------------- + ------------------------| 3*|----------------- + ------------------------|*|----------------- - ------------------- - -------------------------- + ------------------------- + ------------------------| 2 2 3 2 | || x ___ / ___\ | / / ___\\ | x ___ / ___\ | | 2 3/2 / ___\ x 2/ ___\ 3/2 / ___\ | / 2/ ___\\ / 2/ ___\\ / 2/ ___\\ / 2/ ___\\ / 2/ ___\\ / ___\ / 2/ ___\\ / 2/ ___\\ / 2/ ___\\ / 2/ ___\\ | log(x)/ ___\ |\ \/ x *tan\\/ x / / 2*log\tan\\/ x // \ \/ x *tan\\/ x / / \ x x *tan\\/ x / x*tan \\/ x / x *tan\\/ x / / 3*\1 + tan \\/ x // 9*\1 + tan \\/ x // 3*\1 + tan \\/ x // 3*\1 + tan \\/ x //*log(x) \1 + tan \\/ x //*log(x)*tan\\/ x / \1 + tan \\/ x // *log(x) \1 + tan \\/ x // *log(x) 3*\1 + tan \\/ x // *log(x) 3*\1 + tan \\/ x //*log(x)| tan \\/ x /*|----------------------------------------------- + ----------------- - ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ + ------------------- - ------------------- - -------------------- - -------------------------- + ----------------------------------- - ------------------------- + ------------------------- + --------------------------- + --------------------------| | 8 3 8 2 5/2 / ___\ 2 2/ ___\ 2 3/2 3/2 / ___\ 3/2 3/ ___\ 2 2/ ___\ 5/2 / ___\ | \ x 2*x 4*x *tan\\/ x / 4*x *tan \\/ x / 4*x 2*x 2*x *tan\\/ x / 4*x *tan \\/ x / 8*x *tan \\/ x / 8*x *tan\\/ x / /