___ \/ 3 *cos(x)
d / ___ \ --\\/ 3 *cos(x)/ dx
The derivative of a constant times a function is the constant times the derivative of the function.
The derivative of cosine is negative sine:
So, the result is:
The answer is:
___ -\/ 3 *sin(x)
___ -\/ 3 *cos(x)
___ \/ 3 *sin(x)