_______________ cos(x) \/ 4*pi - cos(x) + ------------ 2 4*pi*sin (x)
sqrt(4*pi - cos(x)) + cos(x)/(((4*pi)*sin(x)^2))
Differentiate term by term:
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Differentiate term by term:
The derivative of the constant is zero.
The derivative of a constant times a function is the constant times the derivative of the function.
The derivative of cosine is negative sine:
So, the result is:
The result is:
The result of the chain rule is:
Apply the quotient rule, which is:
and .
To find :
The derivative of cosine is negative sine:
To find :
The derivative of a constant times a function is the constant times the derivative of the function.
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
The derivative of sine is cosine:
The result of the chain rule is:
So, the result is:
Now plug in to the quotient rule:
The result is:
Now simplify:
The answer is:
2 sin(x) 1 cos (x) ------------------- - ------------*sin(x) - ------------ _______________ 2 3 2*\/ 4*pi - cos(x) 4*pi*sin (x) 2*pi*sin (x)
2 3 sin (x) 2*cos(x) 5*cos(x) 6*cos (x) - ------------------- + ------------------ + ---------- + ---------- 3/2 ________________ 2 4 (-cos(x) + 4*pi) \/ -cos(x) + 4*pi pi*sin (x) pi*sin (x) -------------------------------------------------------------------- 4
3 2 4 5 sin(x) 3*sin (x) 7*cos (x) 6*cos (x) 3*cos(x)*sin(x) - ----------- - -------------------- + --------------------- - ---------- - ---------- - --------------------- 4*pi*sin(x) ________________ 5/2 3 5 3/2 2*\/ -cos(x) + 4*pi 8*(-cos(x) + 4*pi) pi*sin (x) pi*sin (x) 4*(-cos(x) + 4*pi)