1 ----------- ________ / 2 \/ x + 1
1/(sqrt(x^2 + 1))
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Differentiate term by term:
Apply the power rule: goes to
The derivative of the constant is zero.
The result is:
The result of the chain rule is:
The result of the chain rule is:
Now simplify:
The answer is:
-x -------------------- ________ / 2 \ / 2 \x + 1/*\/ x + 1
2 3*x -1 + ------ 2 1 + x ----------- 3/2 / 2\ \1 + x /
/ 2 \ | 5*x | 3*x*|3 - ------| | 2| \ 1 + x / ---------------- 5/2 / 2\ \1 + x /