What is the integral of 1/(13x-7) ?

The integral of 1/(13x-7) is 1/13 ln|13x-7|+C

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integral of 1/(13x-7)

\int \frac{1}{13 x - 7} d x

\frac{1}{13} ln ∣ 13 x - 7 ∣ + C

Solution steps

\int \frac{1}{13 x - 7} d x

Apply u-substitution

: \int \frac{1}{13 u} d u

= \int \frac{1}{13 u} d u

Take the constant out:

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

= \frac{1}{13} \cdot \int \frac{1}{u} d u

Use the common integral:

\int \frac{1}{u} d u = ln (∣ u ∣)

= \frac{1}{13} ln ∣ u ∣

Substitute back

u = 13 x - 7

= \frac{1}{13} ln ∣ 13 x - 7 ∣

Add a constant to the solution

= \frac{1}{13} ln ∣ 13 x - 7 ∣ + C

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What is the integral of 1/(13x-7) ?
The integral of 1/(13x-7) is 1/13 ln|13x-7|+C