x^-tan(x)
-tan(x) x
d / -tan(x)\ --\x / dx
Don't know the steps in finding this derivative.
But the derivative is
The answer is:
-tan(x) // 2 \ tan(x)\
x *|\-1 - tan (x)/*log(x) - ------|
\ x /
/ 2 / 2 \ \
-tan(x) |/tan(x) / 2 \ \ tan(x) 2*\1 + tan (x)/ / 2 \ |
x *||------ + \1 + tan (x)/*log(x)| + ------ - --------------- - 2*\1 + tan (x)/*log(x)*tan(x)|
|\ x / 2 x |
\ x /
/ 3 2 / 2 \ / / 2 \ \ / 2 \ \
-tan(x) | /tan(x) / 2 \ \ 2*tan(x) / 2 \ 3*\1 + tan (x)/ /tan(x) / 2 \ \ | tan(x) 2*\1 + tan (x)/ / 2 \ | 6*\1 + tan (x)/*tan(x) 2 / 2 \ |
x *|- |------ + \1 + tan (x)/*log(x)| - -------- - 2*\1 + tan (x)/ *log(x) + --------------- + 3*|------ + \1 + tan (x)/*log(x)|*|- ------ + --------------- + 2*\1 + tan (x)/*log(x)*tan(x)| - ---------------------- - 4*tan (x)*\1 + tan (x)/*log(x)|
| \ x / 3 2 \ x / | 2 x | x |
\ x x \ x / /