What is the integral of e^{x/7} ?

The integral of e^{x/7} is 7e^{x/7}+C

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integral of e^{x/7}

\int e^{\frac{x}{7}} d x

7 e^{\frac{x}{7}} + C

Solution steps

\int e^{\frac{x}{7}} d x

Apply u-substitution

: \int e^{u} \cdot 7 d u

= \int e^{u} \cdot 7 d u

Take the constant out:

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

= 7 \cdot \int e^{u} d u

Use the common integral:

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

= 7 e^{u}

Substitute back

u = \frac{x}{7}

= 7 e^{\frac{x}{7}}

Add a constant to the solution

= 7 e^{\frac{x}{7}} + C

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\int_{1}^{7} t ln (t) d t

\frac{3}{s ( s ^{2} + s + 5 )}

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