1
1*---
|x|
|x|
/ 1 \ | 1*---| d | |x|| --\|x| / dx
Не могу найти шаги в поиске этой производной.
Но производная
Теперь упростим:
Ответ:
1
---
|x| /sign(x) log(|x|)*sign(x)\
|x| *|------- - ----------------|
| 2 2 |
\ x x /
1
--- / 2 2 2 \
|x| | sign (x) 2*sign(x) (-1 + log(|x|)) *sign (x) 2*log(|x|)*sign(x)|
|x| *|2*DiracDelta(x) - -------- - --------- - 2*DiracDelta(x)*log(|x|) + ------------------------- + ------------------|
| |x| x 2 x |
\ x /
---------------------------------------------------------------------------------------------------------------------------
2
x
/ / 2 \ \
1 | | sign (x) 2*sign(x) 2*log(|x|)*sign(x)| |
--- | 3 3 3 2 3*(-1 + log(|x|))*|-2*DiracDelta(x) + -------- + --------- + 2*DiracDelta(x)*log(|x|) - ------------------|*sign(x)|
|x| | sign (x) 8*DiracDelta(x) 6*sign(x) (-1 + log(|x|)) *sign (x) 6*log(|x|)*sign(x) 6*DiracDelta(x)*sign(x) 4*sign (x) 8*DiracDelta(x)*log(|x|) \ |x| x x / |
|x| *|2*DiracDelta(x, 1) + -------- - --------------- - 2*DiracDelta(x, 1)*log(|x|) + --------- - ------------------------- - ------------------ - ----------------------- + ---------- + ------------------------ + -------------------------------------------------------------------------------------------------------------------|
| 2 x 2 4 2 |x| x*|x| x 2 |
\ x x x x x /
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
2
x