2
27*x
-----------------
/ ______ \
| / 3 |
2*\\/ 9*x - 1/
/ 2 \ d | 27*x | --|-----------------| dx| / ______ \| | | / 3 || \2*\\/ 9*x - 1//
The derivative of a constant times a function is the constant times the derivative of the function.
Apply the quotient rule, which is:
and .
To find :
Apply the power rule: goes to
To find :
Differentiate term by term:
The derivative of the constant is zero.
The derivative of a constant times a function is the constant times the derivative of the function.
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Apply the power rule: goes to
The result of the chain rule is:
So, the result is:
The result is:
Now plug in to the quotient rule:
So, the result is:
Now simplify:
The answer is:
____
/ 3
1 243*x*\/ x
54*x*----------------- - ------------------
/ ______ \ 2
| / 3 | / ______ \
2*\\/ 9*x - 1/ | / 3 |
4*\\/ 9*x - 1/
/ / ____ \\
| | / 3 ||
| 2 | \/ x 18*x ||
| 9*x *|- ------- + --------------||
| ____ | 2 ____||
| / 3 | x / 3 ||
| 9*\/ x \ -1 + 3*\/ x /|
27*|1 - -------------- + ---------------------------------|
| ____ / ____\ |
| / 3 | / 3 | |
\ -1 + 3*\/ x 8*\-1 + 3*\/ x / /
-----------------------------------------------------------
____
/ 3
-1 + 3*\/ x
/ / ____ ____ \ ____ / ____ \\
| | / 3 / 3 | / 3 | / 3 ||
| 2 | 54 \/ x 486*\/ x | 24*\/ x | \/ x 18*x ||
243*|x *|-------------- + ------- - -----------------| - ---------- + 12*x*|- ------- + --------------||
| | ____ 3 2| x | 2 ____||
| | / 3 x / ____\ | | x / 3 ||
| |-1 + 3*\/ x | / 3 | | \ -1 + 3*\/ x /|
\ \ \-1 + 3*\/ x / / /
--------------------------------------------------------------------------------------------------------
2
/ ____\
| / 3 |
16*\-1 + 3*\/ x /