Не могу найти шаги в поиске этой производной.
Но производная
Ответ:
x ________ / log(cos(x)) sin(x) \ \/ cos(x) *|- ----------- - --------| | 2 x*cos(x)| \ x /
/ 2 \ | /log(cos(x)) sin(x)\ | | |----------- + ------| 2 | x ________ | \ x cos(x)/ sin (x) 2*log(cos(x)) 2*sin(x)| \/ cos(x) *|-1 + ----------------------- - ------- + ------------- + --------| | x 2 2 x*cos(x)| \ cos (x) x / ------------------------------------------------------------------------------ x
/ / 2 \\ | 3 /log(cos(x)) sin(x)\ | sin (x) 2*log(cos(x)) 2*sin(x)|| | /log(cos(x)) sin(x)\ 3*|----------- + ------|*|1 + ------- - ------------- - --------|| | |----------- + ------| 3 2 \ x cos(x)/ | 2 2 x*cos(x)|| x ________ |3 \ x cos(x)/ 6*log(cos(x)) 2*sin(x) 2*sin (x) 6*sin(x) 3*sin (x) \ cos (x) x /| \/ cos(x) *|- - ----------------------- - ------------- - -------- - --------- - --------- + --------- + -----------------------------------------------------------------| |x 2 3 cos(x) 3 2 2 x | \ x x cos (x) x *cos(x) x*cos (x) / --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- x