x sin(pi*x)
1 - - - ---------
1 2
d / x sin(pi*x)\ --|1 - - - ---------| dx\ 1 2 /
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.
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:
So, the result is:
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 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:
So, the result is:
So, the result is:
The result is:
The answer is:
pi*cos(pi*x)
-1 - ------------
2
2
pi *sin(pi*x)
-------------
2
3
pi *cos(pi*x)
-------------
2