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:
The answer is:
/ 2 \ sin(x) |/sin(x) \ sin(x) 2*cos(x)| 2*x *||------ + cos(x)*log(x)| - ------ - log(x)*sin(x) + --------| |\ x / 2 x | \ x /
/ 3 \ sin(x) | /sin(x) \ 2*sin(x) 3*sin(x) 3*cos(x) /sin(x) \ /sin(x) 2*cos(x)\| -2*x *|- |------ + cos(x)*log(x)| + cos(x)*log(x) - -------- + -------- + -------- + 3*|------ + cos(x)*log(x)|*|------ + log(x)*sin(x) - --------|| | \ x / 3 x 2 \ x / | 2 x || \ x x \ x //