Detail solution
-
Apply the product rule:
; to find :
-
Apply the power rule: goes to
; to find :
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The derivative of sine is cosine:
The result is:
The answer is:
The first derivative
[src]
$$x \cos{\left(x \right)} + \sin{\left(x \right)}$$
The second derivative
[src]
$$- x \sin{\left(x \right)} + 2 \cos{\left(x \right)}$$
The third derivative
[src]
$$- (x \cos{\left(x \right)} + 3 \sin{\left(x \right)})$$