___ \/ x + 3 --------- x + 2
(sqrt(x) + 3)/(x + 2)
Apply the quotient rule, which is:
and .
To find :
Differentiate term by term:
The derivative of the constant is zero.
Apply the power rule: goes to
The result is:
To find :
Differentiate term by term:
The derivative of the constant is zero.
Apply the power rule: goes to
The result is:
Now plug in to the quotient rule:
Now simplify:
The answer is:
___
1 \/ x + 3
--------------- - ---------
___ 2
2*\/ x *(x + 2) (x + 2)
/ ___\
1 1 2*\3 + \/ x /
- ------ - ------------- + -------------
3/2 ___ 2
4*x \/ x *(2 + x) (2 + x)
----------------------------------------
2 + x
/ / ___\ \
| 1 1 2*\3 + \/ x / 1 |
3*|------ + -------------- - ------------- + --------------|
| 5/2 ___ 2 3 3/2 |
\8*x \/ x *(2 + x) (2 + x) 4*x *(2 + x)/
------------------------------------------------------------
2 + x