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Integral of 8-x^2 dx

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The solution

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 |  \8 - x / dx
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23(8x2)dx\int\limits_{2}^{3} \left(8 - x^{2}\right)\, dx
Integral(8 - x^2, (x, 2, 3))
Detail solution
  1. Integrate term-by-term:

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

      8dx=8x\int 8\, dx = 8 x

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

      (x2)dx=x2dx\int \left(- x^{2}\right)\, dx = - \int x^{2}\, dx

      1. The integral of xnx^{n} is xn+1n+1\frac{x^{n + 1}}{n + 1} when n1n \neq -1:

        x2dx=x33\int x^{2}\, dx = \frac{x^{3}}{3}

      So, the result is: x33- \frac{x^{3}}{3}

    The result is: x33+8x- \frac{x^{3}}{3} + 8 x

  2. Now simplify:

    x(24x2)3\frac{x \left(24 - x^{2}\right)}{3}

  3. Add the constant of integration:

    x(24x2)3+constant\frac{x \left(24 - x^{2}\right)}{3}+ \mathrm{constant}


The answer is:

x(24x2)3+constant\frac{x \left(24 - x^{2}\right)}{3}+ \mathrm{constant}

The answer (Indefinite) [src]
  /                          
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 | /     2\                x 
 | \8 - x / dx = C + 8*x - --
 |                         3 
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(8x2)dx=Cx33+8x\int \left(8 - x^{2}\right)\, dx = C - \frac{x^{3}}{3} + 8 x
The graph
2.003.002.102.202.302.402.502.602.702.802.90-2020
The answer [src]
5/3
53\frac{5}{3}
=
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5/3
53\frac{5}{3}
5/3
Numerical answer [src]
1.66666666666667
1.66666666666667

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