What is the integral from 0 to 2 of x/(1+6x^2) ?

The integral from 0 to 2 of x/(1+6x^2) is 1/6 ln(5)

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integral from 0 to 2 of x/(1+6x^2)

\int_{0}^{2} \frac{x}{1 + 6 x ^{2}} d x

\frac{1}{6} ln (5)

Decimal

0.26823 \dots

Solution steps

\int_{0}^{2} \frac{x}{1 + 6 x ^{2}} d x

Apply u-substitution

: \int_{1}^{25} \frac{1}{12 u} d u

= \int_{1}^{25} \frac{1}{12 u} d u

Take the constant out:

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

= \frac{1}{12} \cdot \int_{1}^{25} \frac{1}{u} d u

Use the common integral:

\int \frac{1}{u} d u = ln (∣ u ∣)

= \frac{1}{12} [ln ∣ u ∣]_{1}^{25}

Compute the boundaries:

2 ln (5)

= \frac{1}{12} \cdot 2 ln (5)

Simplify

= \frac{1}{6} ln (5)

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What is the integral from 0 to 2 of x/(1+6x^2) ?
The integral from 0 to 2 of x/(1+6x^2) is 1/6 ln(5)