/pi*t\ -3*pi*cos|----| \ 6 / --------------- 2
/ /pi*t\\ |-3*pi*cos|----|| d | \ 6 /| --|---------------| dt\ 2 /
The derivative of a constant times a function is the constant times the derivative of the function.
The derivative of a constant times a function is the constant times the derivative of the function.
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:
So, the result is:
So, the result is:
The answer is:
2 /pi*t\ pi *sin|----| \ 6 / ------------- 4
3 /pi*t\ pi *cos|----| \ 6 / ------------- 24
4 /pi*t\ -pi *sin|----| \ 6 / --------------- 144