2 -k*x e
/ 2\ d | -k*x | --\e / dx
Let .
The derivative of is itself.
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:
Now simplify:
The answer is:
2 / 2\ -k*x 2*k*\-1 + 2*k*x /*e