What is the integral from 1 to 8 of 4/y ?

The integral from 1 to 8 of 4/y is 12ln(2)

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integral from 1 to 8 of 4/y

\int_{1}^{8} \frac{4}{y} d y

12 ln (2)

Decimal

8.31776 \dots

Solution steps

\int_{1}^{8} \frac{4}{y} d y

Take the constant out:

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

= 4 \cdot \int_{1}^{8} \frac{1}{y} d y

Use the common integral:

\int \frac{1}{y} d y = ln (∣ y ∣)

= 4 [ln ∣ y ∣]_{1}^{8}

Compute the boundaries:

3 ln (2)

= 4 \cdot 3 ln (2)

Simplify

= 12 ln (2)

What is the integral from 1 to 8 of 4/y ?
The integral from 1 to 8 of 4/y is 12ln(2)