Mister Exam

Derivative of e^-x

Function f() - derivative -N order at the point
v

The graph:

from to

Piecewise:

The solution

You have entered [src]
 -x
e  
exe^{- x}
d / -x\
--\e  /
dx     
ddxex\frac{d}{d x} e^{- x}
Detail solution
  1. Let u=xu = - x.

  2. The derivative of eue^{u} is itself.

  3. Then, apply the chain rule. Multiply by ddx(x)\frac{d}{d x} \left(- x\right):

    1. The derivative of a constant times a function is the constant times the derivative of the function.

      1. Apply the power rule: xx goes to 11

      So, the result is: 1-1

    The result of the chain rule is:

    ex- e^{- x}


The answer is:

ex- e^{- x}

The graph
02468-8-6-4-2-1010-5000050000
The first derivative [src]
  -x
-e  
ex- e^{- x}
The second derivative [src]
 -x
e  
exe^{- x}
The third derivative [src]
  -x
-e  
ex- e^{- x}
The graph
Derivative of e^-x