Apply the product rule:
; to find :
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:
; to find :
Let .
Apply the power rule: goes to
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:
The result is:
Now simplify:
The answer is:
_________ 4*n*x
4*n*\/ 2*x + 3 + -----------
_________
\/ 2*x + 3
/ x \
4*n*|2 - -------|
\ 3 + 2*x/
-----------------
_________
\/ 3 + 2*x