tan(4*x + 5)
d --(tan(4*x + 5)) dx
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 \ 32*\1 + tan (5 + 4*x)/*tan(5 + 4*x)
/ 2 \ / 2 \ 128*\1 + tan (5 + 4*x)/*\1 + 3*tan (5 + 4*x)/