Question

derivate
f(x)=ln(x2+3), x0=l
f'(x)=

Answer 1

use the chain rule

Answer 2

does that help?

Answer 3

but i don;t know to do that

Answer 4

you haven't used the chain rule?

Answer 5

no, i want to help my friend

Answer 6

with your help^^

Answer 7

ln(x^2 + 3) is a compound function
- function within a function

so we can write it as
f(g(x) where g(x) = x^2 + 3


so derivative of f(g(x) = f'(g)x) * g'(x)

= 1/ (x^2 + 3) * 2x

= 2x/ (x^2 + 3)
- that is f'(x)

Answer 8

i used the standard derivatives

D (ln u) = 1/u.

and D (x^n) = nx^(n-1)

Answer 9

Are you clear with evertthing?
What other examples of chain rule, or what?

(Please reply, don't just sit silent. We will help you)