/pi*x\
3*sin|----| - 1
\ 6 /
3*sin((pi*x)/6) - 1
Differentiate term by term:
The derivative of a constant times a function is the constant times the derivative of the function.
Let .
The derivative of sine is cosine:
Then, apply the chain rule. Multiply by :
The derivative of a constant times a function is the constant times the derivative of the function.
The derivative of a constant times a function is the constant times the derivative of the function.
Apply the power rule: goes to
So, the result is:
So, the result is:
The result of the chain rule is:
So, the result is:
The derivative of the constant is zero.
The result is:
Now simplify:
The answer is:
/pi*x\
pi*cos|----|
\ 6 /
------------
2
2 /pi*x\
-pi *sin|----|
\ 6 /
---------------
12