_________ / 3/x\ / tan |-| \/ \2/
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Rewrite the function to be differentiated:
Apply the quotient rule, which is:
and .
To find :
Let .
The derivative of sine is cosine:
Then, apply the chain rule. Multiply by :
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 of the chain rule is:
To find :
Let .
The derivative of cosine is negative sine:
Then, apply the chain rule. Multiply by :
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 of the chain rule is:
Now plug in to the quotient rule:
The result of the chain rule is:
The result of the chain rule is:
Now simplify:
The answer is:
/ 2/x\\
_________ | 3*tan |-||
/ 3/x\ |3 \2/|
/ tan |-| *|- + ---------|
\/ \2/ \2 2 /
-----------------------------
/x\
2*tan|-|
\2/
/ 2/x\\
_________ | 1 + tan |-||
/ 3/x\ / 2/x\\ | \2/|
3* / tan |-| *|1 + tan |-||*|4 + -----------|
\/ \2/ \ \2// | 2/x\ |
| tan |-| |
\ \2/ /
-----------------------------------------------
16
/ 2 \
| / 2/x\\ / 2/x\\|
_________ | |1 + tan |-|| 20*|1 + tan |-|||
/ 3/x\ / 2/x\\ | /x\ \ \2// \ \2//|
3* / tan |-| *|1 + tan |-||*|16*tan|-| - -------------- + ----------------|
\/ \2/ \ \2// | \2/ 3/x\ /x\ |
| tan |-| tan|-| |
\ \2/ \2/ /
-----------------------------------------------------------------------------
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