3 2 x *sin(5*x) + log (x)
d / 3 2 \ --\x *sin(5*x) + log (x)/ dx
Differentiate term by term:
Apply the product rule:
; to find :
Apply the power rule: goes to
; to find :
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:
The result is:
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
The derivative of is .
The result of the chain rule is:
The result is:
Now simplify:
The answer is:
2*log(x) 2 3 -------- + 3*x *sin(5*x) + 5*x *cos(5*x) x
2 3 2*log(x) 2 -- - 25*x *sin(5*x) - -------- + 6*x*sin(5*x) + 30*x *cos(5*x) 2 2 x x
6 2 3 4*log(x) - -- + 6*sin(5*x) - 225*x *sin(5*x) - 125*x *cos(5*x) + -------- + 90*x*cos(5*x) 3 3 x x