Apply the quotient rule, which is:
dxdg(x)f(x)=g2(x)−f(x)dxdg(x)+g(x)dxdf(x)
f(x)=x and g(x)=ex2.
To find dxdf(x):
-
Apply the power rule: x goes to 1
To find dxdg(x):
-
Let u=x2.
-
The derivative of eu is itself.
-
Then, apply the chain rule. Multiply by dxdx2:
-
Apply the power rule: x2 goes to 2x
The result of the chain rule is:
Now plug in to the quotient rule:
(−2x2ex2+ex2)e−2x2