Не могу найти шаги в поиске этой производной.
Но производная
Ответ:
tan(x) // 2 \ tan(x) \ atan (x)*|\1 + tan (x)/*log(atan(x)) + ----------------| | / 2\ | \ \1 + x /*atan(x)/
/ 2 / 2 \ \ tan(x) |// 2 \ tan(x) \ tan(x) 2*\1 + tan (x)/ / 2 \ 2*x*tan(x) | atan (x)*||\1 + tan (x)/*log(atan(x)) + ----------------| - ------------------ + ---------------- + 2*\1 + tan (x)/*log(atan(x))*tan(x) - -----------------| || / 2\ | 2 / 2\ 2 | |\ \1 + x /*atan(x)/ / 2\ 2 \1 + x /*atan(x) / 2\ | \ \1 + x / *atan (x) \1 + x / *atan(x)/
/ 3 / / 2 \ \ 2 / 2 \ / 2 \ / 2 \ 2 \ tan(x) |// 2 \ tan(x) \ // 2 \ tan(x) \ | tan(x) 2*\1 + tan (x)/ / 2 \ 2*x*tan(x) | / 2 \ 3*\1 + tan (x)/ 2*tan(x) 2*tan(x) 2 / 2 \ 6*x*\1 + tan (x)/ 6*x*tan(x) 6*\1 + tan (x)/*tan(x) 8*x *tan(x) | atan (x)*||\1 + tan (x)/*log(atan(x)) + ----------------| - 3*|\1 + tan (x)/*log(atan(x)) + ----------------|*|------------------ - ---------------- - 2*\1 + tan (x)/*log(atan(x))*tan(x) + -----------------| + 2*\1 + tan (x)/ *log(atan(x)) - ------------------ - ----------------- + ------------------ + 4*tan (x)*\1 + tan (x)/*log(atan(x)) - ----------------- + ------------------ + ---------------------- + -----------------| || / 2\ | | / 2\ | | 2 / 2\ 2 | 2 2 3 2 3 / 2\ 3 | |\ \1 + x /*atan(x)/ \ \1 + x /*atan(x)/ |/ 2\ 2 \1 + x /*atan(x) / 2\ | / 2\ 2 / 2\ / 2\ 3 / 2\ / 2\ 2 \1 + x /*atan(x) / 2\ | \ \\1 + x / *atan (x) \1 + x / *atan(x)/ \1 + x / *atan (x) \1 + x / *atan(x) \1 + x / *atan (x) \1 + x / *atan(x) \1 + x / *atan (x) \1 + x / *atan(x)/