tan(log(x)) --------------- sin(log(x)) + 5
tan(log(x))/(sin(log(x)) + 5)
Apply the quotient rule, which is:
and .
To find :
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 :
The derivative of 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 :
The derivative of is .
The result of the chain rule is:
Now plug in to the quotient rule:
To find :
Differentiate term by term:
The derivative of the constant is zero.
Let .
The derivative of sine is cosine:
Then, apply the chain rule. Multiply by :
The derivative of is .
The result of the chain rule is:
The result is:
Now plug in to the quotient rule:
Now simplify:
The answer is:
2 1 + tan (log(x)) cos(log(x))*tan(log(x)) ------------------- - ----------------------- x*(sin(log(x)) + 5) 2 x*(sin(log(x)) + 5)
/ 2 \ | 2*cos (log(x)) | |--------------- + cos(log(x)) + sin(log(x))|*tan(log(x)) / 2 \ / 2 \ \5 + sin(log(x)) / 2*\1 + tan (log(x))/*cos(log(x)) \1 + tan (log(x))/*(-1 + 2*tan(log(x))) + --------------------------------------------------------- - -------------------------------- 5 + sin(log(x)) 5 + sin(log(x)) -------------------------------------------------------------------------------------------------------------------------------------- 2 x *(5 + sin(log(x)))
/ 2 3 \ | 6*cos (log(x)) 6*cos (log(x)) 6*cos(log(x))*sin(log(x)) | / 2 \ |3*sin(log(x)) + --------------- + ------------------ + ------------------------- + cos(log(x))|*tan(log(x)) / 2 \ | 2*cos (log(x)) | | 5 + sin(log(x)) 2 5 + sin(log(x)) | 3*\1 + tan (log(x))/*|--------------- + cos(log(x)) + sin(log(x))| / 2 \ / 2 \ / 2 \ \ (5 + sin(log(x))) / \5 + sin(log(x)) / 3*\1 + tan (log(x))/*(-1 + 2*tan(log(x)))*cos(log(x)) 2*\1 + tan (log(x))/*\2 - 3*tan(log(x)) + 3*tan (log(x))/ - ------------------------------------------------------------------------------------------------------------ + ------------------------------------------------------------------ - ----------------------------------------------------- 5 + sin(log(x)) 5 + sin(log(x)) 5 + sin(log(x)) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 3 x *(5 + sin(log(x)))