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

The integral from 1 to 2 of x/((x^2+2)^2) is 1/12

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

\int_{1}^{2} \frac{x}{( x ^{2} + 2 ) ^{2}} d x

\frac{1}{12}

Decimal

0.08333 \dots

Solution steps

\int_{1}^{2} \frac{x}{( x ^{2} + 2 ) ^{2}} d x

Apply u-substitution

: \int_{3}^{6} \frac{1}{2 u ^{2}} d u

= \int_{3}^{6} \frac{1}{2 u ^{2}} d u

Take the constant out:

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

= \frac{1}{2} \cdot \int_{3}^{6} \frac{1}{u ^{2}} d u

Apply the Power Rule

: [- \frac{1}{u}]_{3}^{6}

= \frac{1}{2} [- \frac{1}{u}]_{3}^{6}

Compute the boundaries:

\frac{1}{6}

= \frac{1}{2} \cdot \frac{1}{6}

Simplify

= \frac{1}{12}

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What is the integral from 1 to 2 of x/((x^2+2)^2) ?
The integral from 1 to 2 of x/((x^2+2)^2) is 1/12