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(x+1)*e^(2*x)

Integral of (x+1)*e^(2*x) dx

Limits of integration:

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The graph:

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Piecewise:

The solution

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  1                
  /                
 |                 
 |           2*x   
 |  (x + 1)*e    dx
 |                 
/                  
0                  
$$\int\limits_{0}^{1} \left(x + 1\right) e^{2 x}\, dx$$
Integral((x + 1)*E^(2*x), (x, 0, 1))
Detail solution
  1. There are multiple ways to do this integral.

    Method #1

    1. Rewrite the integrand:

    2. Integrate term-by-term:

      1. Use integration by parts:

        Let and let .

        Then .

        To find :

        1. There are multiple ways to do this integral.

          Method #1

          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:

          Method #2

          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 a constant is the constant times the variable of integration:

              So, the result is:

            Now substitute back in:

        Now evaluate the sub-integral.

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

        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:

        So, the result is:

      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:

      The result is:

    Method #2

    1. Use integration by parts:

      Let and let .

      Then .

      To find :

      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:

      Now evaluate the sub-integral.

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

      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:

      So, the result is:

    Method #3

    1. Rewrite the integrand:

    2. Integrate term-by-term:

      1. Use integration by parts:

        Let and let .

        Then .

        To find :

        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:

        Now evaluate the sub-integral.

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

        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:

        So, the result is:

      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:

      The result is:

  2. Now simplify:

  3. Add the constant of integration:


The answer is:

The answer (Indefinite) [src]
  /                                   
 |                        2*x      2*x
 |          2*x          e      x*e   
 | (x + 1)*e    dx = C + ---- + ------
 |                        4       2   
/                                     
$${{\left(2\,x-1\right)\,e^{2\,x}}\over{4}}+{{e^{2\,x}}\over{2}}$$
The graph
The answer [src]
         2
  1   3*e 
- - + ----
  4    4  
$${{3\,e^2}\over{4}}-{{1}\over{4}}$$
=
=
         2
  1   3*e 
- - + ----
  4    4  
$$- \frac{1}{4} + \frac{3 e^{2}}{4}$$
Numerical answer [src]
5.29179207419799
5.29179207419799
The graph
Integral of (x+1)*e^(2*x) dx

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