What is the integral from 0 to 5 of 6e^{3x} ?

The integral from 0 to 5 of 6e^{3x} is 2(e^{15}-1)

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integral from 0 to 5 of 6e^{3x}

\int_{0}^{5} 6 e^{3 x} d x

2 (e^{15} - 1)

Decimal

6538032.74494 \dots

Solution steps

\int_{0}^{5} 6 e^{3 x} d x

Take the constant out:

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

= 6 \cdot \int_{0}^{5} e^{3 x} d x

Apply u-substitution

= 6 \cdot \int_{0}^{15} e^{u} \frac{1}{3} d u

Take the constant out:

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

= 6 \cdot \frac{1}{3} \cdot \int_{0}^{15} e^{u} d u

Use the common integral:

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

= 6 \cdot \frac{1}{3} [e^{u}]_{0}^{15}

Simplify

6 \cdot \frac{1}{3} [e^{u}]_{0}^{15} : 2 [e^{u}]_{0}^{15}

= 2 [e^{u}]_{0}^{15}

Compute the boundaries:

e^{15} - 1

= 2 (e^{15} - 1)

What is the integral from 0 to 5 of 6e^{3x} ?
The integral from 0 to 5 of 6e^{3x} is 2(e^{15}-1)