6 3 x + 4*x --------- 2 / 3 \ \x + 1/
/ 6 3\ d |x + 4*x | --|---------| dx| 2| |/ 3 \ | \\x + 1/ /
Apply the quotient rule, which is:
and .
To find :
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:
To find :
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Differentiate term by term:
The derivative of the constant is zero.
Apply the power rule: goes to
The result is:
The result of the chain rule is:
Now plug in to the quotient rule:
Now simplify:
The answer is:
5 2 2 / 6 3\ 6*x + 12*x 6*x *\x + 4*x / ------------ - ---------------- 2 3 / 3 \ / 3 \ \x + 1/ \x + 1/
/ / 3 \ \ | 3 | 9*x | / 3\| | x *|-2 + ------|*\4 + x /| | 3 / 3\ | 3| | | 3 12*x *\2 + x / \ 1 + x / | 6*x*|4 + 5*x - -------------- + -------------------------| | 3 3 | \ 1 + x 1 + x / ----------------------------------------------------------- 2 / 3\ \1 + x /
/ / 3 6 \ \ | 3 / 3\ | 27*x 54*x | / 3 \ | | x *\4 + x /*|1 - ------ + ---------| 3 | 9*x | / 3\| | | 3 2| 9*x *|-2 + ------|*\2 + x /| | 3 / 3\ | 1 + x / 3\ | | 3| | | 3 9*x *\4 + 5*x / \ \1 + x / / \ 1 + x / | 12*|2 + 10*x - --------------- - ------------------------------------ + ---------------------------| | 3 3 3 | \ 1 + x 1 + x 1 + x / ----------------------------------------------------------------------------------------------------- 2 / 3\ \1 + x /