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x×e^(-x^2)

Integral of x×e^(-x^2) dx

Limits of integration:

from to
v

The graph:

from to

Piecewise:

The solution

You have entered [src]
 oo          
  /          
 |           
 |       2   
 |     -x    
 |  x*E    dx
 |           
/            
0            
$$\int\limits_{0}^{\infty} e^{- x^{2}} x\, dx$$
Integral(x*E^(-x^2), (x, 0, oo))
Detail solution
  1. Let .

    Then let and substitute :

    1. The integral of a constant times a function is the constant times the integral of the function:

      1. The integral of the exponential function is itself.

      So, the result is:

    Now substitute back in:

  2. Add the constant of integration:


The answer is:

The answer (Indefinite) [src]
  /                    
 |                    2
 |      2           -x 
 |    -x           e   
 | x*E    dx = C - ----
 |                  2  
/                      
$$\int e^{- x^{2}} x\, dx = C - \frac{e^{- x^{2}}}{2}$$
The graph
The answer [src]
1/2
$$\frac{1}{2}$$
=
=
1/2
$$\frac{1}{2}$$
1/2
The graph
Integral of x×e^(-x^2) dx

    Use the examples entering the upper and lower limits of integration.