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e^(-x^2)*x

Integral of e^(-x^2)*x dx

Limits of integration:

from to
v

The graph:

from to

Piecewise:

The solution

You have entered [src]
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 |  e   *x dx
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0            
01xex2dx\int\limits_{0}^{1} x e^{- x^{2}}\, dx
Integral(x/E^(x^2), (x, 0, 1))
Detail solution
  1. Let u=ex2u = e^{- x^{2}}.

    Then let du=2xex2dxdu = - 2 x e^{- x^{2}} dx and substitute du2- \frac{du}{2}:

    14du\int \frac{1}{4}\, du

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

      (12)du=1du2\int \left(- \frac{1}{2}\right)\, du = - \frac{\int 1\, du}{2}

      1. The integral of a constant is the constant times the variable of integration:

        1du=u\int 1\, du = u

      So, the result is: u2- \frac{u}{2}

    Now substitute uu back in:

    ex22- \frac{e^{- x^{2}}}{2}

  2. Add the constant of integration:

    ex22+constant- \frac{e^{- x^{2}}}{2}+ \mathrm{constant}


The answer is:

ex22+constant- \frac{e^{- x^{2}}}{2}+ \mathrm{constant}

The answer (Indefinite) [src]
  /                    
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 |  -x             e   
 | e   *x dx = C - ----
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ex22-{{e^ {- x^2 }}\over{2}}
The graph
0.001.000.100.200.300.400.500.600.700.800.901-1
The answer [src]
     -1
1   e  
- - ---
2    2 
12e12{{1}\over{2}}-{{e^ {- 1 }}\over{2}}
=
=
     -1
1   e  
- - ---
2    2 
1212e\frac{1}{2} - \frac{1}{2 e}
Numerical answer [src]
0.316060279414279
0.316060279414279
The graph
Integral of e^(-x^2)*x dx

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