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 :
The derivative of sine is cosine:
The result of the chain rule is:
The result of the chain rule is:
The answer is:
-2*cos(x)
--------------
2
sin(x)*sin (x)
/ 2 \
| 3*cos (x)|
2*|1 + ---------|
| 2 |
\ sin (x) /
-----------------
2
sin (x)
/ 2 \
| 3*cos (x)|
-8*|2 + ---------|*cos(x)
| 2 |
\ sin (x) /
-------------------------
3
sin (x)