x e *sin(x) - 1
d / x \ --\e *sin(x) - 1/ dx
Differentiate term by term:
Apply the product rule:
; to find :
The derivative of is itself.
; to find :
The derivative of sine is cosine:
The result is:
The derivative of the constant is zero.
The result is:
Now simplify:
The answer is:
x x cos(x)*e + e *sin(x)
x 2*(-sin(x) + cos(x))*e