Apply the quotient rule, which is:
dxdg(x)f(x)=g2(x)−f(x)dxdg(x)+g(x)dxdf(x)
f(x)=1−log(x) and g(x)=x2.
To find dxdf(x):
-
Differentiate 1−log(x) term by term:
-
The derivative of the constant 1 is zero.
-
The derivative of a constant times a function is the constant times the derivative of the function.
-
The derivative of log(x) is x1.
So, the result is: −x1
The result is: −x1
To find dxdg(x):
-
Apply the power rule: x2 goes to 2x
Now plug in to the quotient rule:
x4−2x(1−log(x))−x