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 \ atan(x) | /atan(x) log(x)\ atan(x) 2 2*x*log(x)| -5*x *|- |------- + ------| + ------- - ---------- + ----------| | | x 2| 2 / 2\ 2 | | \ 1 + x / x x*\1 + x / / 2\ | \ \1 + x / /
/ 3 2 \ atan(x) | /atan(x) log(x)\ 6 2*atan(x) 2*log(x) 3 /atan(x) log(x)\ /atan(x) 2 2*x*log(x)\ 8*x *log(x)| -5*x *|- |------- + ------| + --------- - --------- + --------- + ----------- + 3*|------- + ------|*|------- - ---------- + ----------| - -----------| | | x 2| 2 3 2 2 / 2\ | x 2| | 2 / 2\ 2 | 3 | | \ 1 + x / / 2\ x / 2\ x *\1 + x / \ 1 + x / | x x*\1 + x / / 2\ | / 2\ | \ \1 + x / \1 + x / \ \1 + x / / \1 + x / /