Не могу найти шаги в поиске этой производной.
Но производная
Ответ:
1 /d d /d d \ \ --- |--(im(x))*im(x) + --(re(x))*re(x) |--(im(x))*im(x) + --(re(x))*re(x)|*log(|x|)| |x| |dx dx \dx dx / | |x| *|--------------------------------- - --------------------------------------------| | 3 3 | \ |x| |x| /
/ 2 2 2 \ 1 | /d d \ 2 /d d \ /d d \ | --- | 2 2 2 2 / 2 2 2 2 \ 4*|--(im(x))*im(x) + --(re(x))*re(x)| (-1 + log(|x|)) *|--(im(x))*im(x) + --(re(x))*re(x)| 3*|--(im(x))*im(x) + --(re(x))*re(x)| *log(|x|)| |x| |/d \ /d \ d d |/d \ /d \ d d | \dx dx / \dx dx / \dx dx / | |x| *||--(im(x))| + |--(re(x))| + ---(im(x))*im(x) + ---(re(x))*re(x) - ||--(im(x))| + |--(re(x))| + ---(im(x))*im(x) + ---(re(x))*re(x)|*log(|x|) - -------------------------------------- + ----------------------------------------------------- + -----------------------------------------------| |\dx / \dx / 2 2 |\dx / \dx / 2 2 | 2 3 2 | \ dx dx \ dx dx / |x| |x| |x| / ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 3 |x|
/ / 2 2 \\ | | /d d \ /d d \ || | / 2 2 2 2 \ / 2 2 2 2 \ | 2 2 2 2 / 2 2 2 2 \ 4*|--(im(x))*im(x) + --(re(x))*re(x)| 3*|--(im(x))*im(x) + --(re(x))*re(x)| *log(|x|)|| | 3 3 /d d \ |/d \ /d \ d d | 3 /d d \ |/d \ /d \ d d | /d d \ |/d \ /d \ d d |/d \ /d \ d d | \dx dx / \dx dx / || 1 | /d d \ 3 /d d \ 12*|--(im(x))*im(x) + --(re(x))*re(x)|*||--(im(x))| + |--(re(x))| + ---(im(x))*im(x) + ---(re(x))*re(x)| /d d \ 9*|--(im(x))*im(x) + --(re(x))*re(x)|*||--(im(x))| + |--(re(x))| + ---(im(x))*im(x) + ---(re(x))*re(x)|*log(|x|) 3*(-1 + log(|x|))*|--(im(x))*im(x) + --(re(x))*re(x)|*||--(im(x))| + |--(re(x))| + ---(im(x))*im(x) + ---(re(x))*re(x) - ||--(im(x))| + |--(re(x))| + ---(im(x))*im(x) + ---(re(x))*re(x)|*log(|x|) - -------------------------------------- + -----------------------------------------------|| --- |/ 3 3 2 2 \ 3 3 23*|--(im(x))*im(x) + --(re(x))*re(x)| 2 2 (-1 + log(|x|)) *|--(im(x))*im(x) + --(re(x))*re(x)| \dx dx / |\dx / \dx / 2 2 | 15*|--(im(x))*im(x) + --(re(x))*re(x)| *log(|x|) \dx dx / |\dx / \dx / 2 2 | \dx dx / |\dx / \dx / 2 2 |\dx / \dx / 2 2 | 2 2 || |x| || d d d d d d | d d \dx dx / d d d d \dx dx / \ dx dx / \dx dx / \ dx dx / \ dx dx \ dx dx / |x| |x| /| -|x| *||---(im(x))*im(x) + ---(re(x))*re(x) + 3*--(im(x))*---(im(x)) + 3*--(re(x))*---(re(x))|*log(|x|) - ---(im(x))*im(x) - ---(re(x))*re(x) - --------------------------------------- - 3*--(im(x))*---(im(x)) - 3*--(re(x))*---(re(x)) + ----------------------------------------------------- + ---------------------------------------------------------------------------------------------------------- + ------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------ + ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| || 3 3 dx 2 dx 2 | 3 3 4 dx 2 dx 2 6 2 4 2 3 | \\dx dx dx dx / dx dx |x| dx dx |x| |x| |x| |x| |x| / ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 3 |x|