1 ------------ 2 x + 2*x + 3
1/(x^2 + 2*x + 3)
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Differentiate term by term:
Differentiate term by term:
Apply the power rule: goes to
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 is:
The derivative of the constant is zero.
The result is:
The result of the chain rule is:
Now simplify:
The answer is:
-2 - 2*x --------------- 2 / 2 \ \x + 2*x + 3/
/ 2 \ | 4*(1 + x) | 2*|-1 + ------------| | 2 | \ 3 + x + 2*x/ --------------------- 2 / 2 \ \3 + x + 2*x/