cot(x) -x ------ - E 2
cot(x)/2 - E^(-x)
Differentiate term by term:
The derivative of a constant times a function is the constant times the derivative of the function.
There are multiple ways to do this derivative.
Rewrite the function to be differentiated:
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Rewrite the function to be differentiated:
Apply the quotient rule, which is:
and .
To find :
The derivative of sine is cosine:
To find :
The derivative of cosine is negative sine:
Now plug in to the quotient rule:
The result of the chain rule is:
Rewrite the function to be differentiated:
Apply the quotient rule, which is:
and .
To find :
The derivative of cosine is negative sine:
To find :
The derivative of sine is cosine:
Now plug in to the quotient rule:
So, the result is:
The derivative of a constant times a function is the constant times the derivative of the function.
Let .
The derivative of is itself.
Then, apply the chain rule. Multiply by :
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 result of the chain rule is:
So, the result is:
The result is:
Now simplify:
The answer is:
2 1 cot (x) -x - - - ------- + e 2 2
-x / 2 \ - e + \1 + cot (x)/*cot(x)
2 / 2 \ 2 / 2 \ -x - \1 + cot (x)/ - 2*cot (x)*\1 + cot (x)/ + e