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| /
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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| /
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3
|x|