What is the integral from 1 to 5 of 7/x ?

The integral from 1 to 5 of 7/x is 7ln(5)

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integral from 1 to 5 of 7/x

\int_{1}^{5} \frac{7}{x} d x

7 ln (5)

Decimal Notation

11.26606 \dots

Solution steps

\int_{1}^{5} \frac{7}{x} d x

Take the constant out:

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

= 7 \cdot \int_{1}^{5} \frac{1}{x} d x

Use the common integral:

\int \frac{1}{x} d x = ln (∣ x ∣)

= 7 [ln ∣ x ∣]_{1}^{5}

Compute the boundaries:

ln (5)

= 7 ln (5)

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What is the integral from 1 to 5 of 7/x ?
The integral from 1 to 5 of 7/x is 7ln(5)