log(x)
cos (x)
------------
/ 1\
log\e /
cos(x)^log(x)/log(exp(1))
The derivative of a constant times a function is the constant times the derivative of the function.
Don't know the steps in finding this derivative.
But the derivative is
So, the result is:
Now simplify:
The answer is:
log(x) /log(cos(x)) log(x)*sin(x)\
cos (x)*|----------- - -------------|
\ x cos(x) /
------------------------------------------
/ 1\
log\e /
/ 2 2 \
log(x) | / log(cos(x)) log(x)*sin(x)\ log(cos(x)) sin (x)*log(x) 2*sin(x) |
-cos (x)*|- |- ----------- + -------------| + ----------- + -------------- + -------- + log(x)|
| \ x cos(x) / 2 2 x*cos(x) |
\ x cos (x) /
------------------------------------------------------------------------------------------------------
/ 1\
log\e /
/ 3 / 2 \ 3 2 \
log(x) |/ log(cos(x)) log(x)*sin(x)\ 3 / log(cos(x)) log(x)*sin(x)\ |log(cos(x)) sin (x)*log(x) 2*sin(x) | 2*log(cos(x)) 3*sin(x) 2*log(x)*sin(x) 2*sin (x)*log(x) 3*sin (x)|
-cos (x)*||- ----------- + -------------| + - - 3*|- ----------- + -------------|*|----------- + -------------- + -------- + log(x)| - ------------- - --------- + --------------- + ---------------- + ---------|
|\ x cos(x) / x \ x cos(x) / | 2 2 x*cos(x) | 3 2 cos(x) 3 2 |
\ \ x cos (x) / x x *cos(x) cos (x) x*cos (x)/
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
/ 1\
log\e /