/ 2 \ log\x + 2*x/
d / / 2 \\ --\log\x + 2*x// dx
Let .
The derivative of is .
Then, apply the chain rule. Multiply by :
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 result of the chain rule is:
Now simplify:
The answer is:
/ 2\
| 2*(1 + x) |
2*|1 - ----------|
\ x*(2 + x) /
------------------
x*(2 + x)
/ 2\
| 4*(1 + x) |
4*(1 + x)*|-3 + ----------|
\ x*(2 + x) /
---------------------------
2 2
x *(2 + x)