What is the integral from 0 to 3 of 8xe^{x^2} ?

The integral from 0 to 3 of 8xe^{x^2} is 4(e^9-1)

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integral from 0 to 3 of 8xe^{x^2}

\int_{0}^{3} 8 x e^{x^{2}} d x

4 (e^{9} - 1)

Decimal

32408.33571 \dots

Solution steps

\int_{0}^{3} 8 x e^{x^{2}} d x

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= 8 \cdot \int_{0}^{3} x e^{x^{2}} d x

Apply u-substitution

: \int_{0}^{9} \frac{e ^{u}}{2} d u

= 8 \cdot \int_{0}^{9} \frac{e ^{u}}{2} d u

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= 8 \cdot \frac{1}{2} \cdot \int_{0}^{9} e^{u} d u

Use the common integral:

\int e^{u} d u = e^{u}

= 8 \cdot \frac{1}{2} [e^{u}]_{0}^{9}

Simplify

8 \cdot \frac{1}{2} [e^{u}]_{0}^{9} : 4 [e^{u}]_{0}^{9}

= 4 [e^{u}]_{0}^{9}

Compute the boundaries:

e^{9} - 1

= 4 (e^{9} - 1)

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What is the integral from 0 to 3 of 8xe^{x^2} ?
The integral from 0 to 3 of 8xe^{x^2} is 4(e^9-1)