tan(3*x-pi/6)
Rewrite the function to be differentiated:
Apply the quotient rule, which is:
and .
To find :
Let .
The derivative of sine is cosine:
Then, apply the chain rule. Multiply by :
Differentiate term by term:
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:
The derivative of the constant is zero.
The result is:
The result of the chain rule is:
To find :
Let .
The derivative of cosine is negative sine:
Then, apply the chain rule. Multiply by :
Differentiate term by term:
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:
The derivative of the constant is zero.
The result is:
The result of the chain rule is:
Now plug in to the quotient rule:
Now simplify:
The answer is:
2/ pi\
3 + 3*tan |3*x - --|
\ 6 /
/ 2/ pi\\ / pi\
-18*|1 + cot |3*x + --||*cot|3*x + --|
\ \ 3 // \ 3 /
/ 2/ pi\\ / 2/ pi\\ 54*|1 + cot |3*x + --||*|1 + 3*cot |3*x + --|| \ \ 3 // \ \ 3 //