What is the integral from 2 to 4 of 8/(x^2) ?

The integral from 2 to 4 of 8/(x^2) is 2

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integral from 2 to 4 of 8/(x^2)

\int_{2}^{4} \frac{8}{x ^{2}} d x

2

Solution steps

\int_{2}^{4} \frac{8}{x ^{2}} d x

Take the constant out:

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

= 8 \cdot \int_{2}^{4} \frac{1}{x ^{2}} d x

Apply the Power Rule

: [- \frac{1}{x}]_{2}^{4}

= 8 [- \frac{1}{x}]_{2}^{4}

Compute the boundaries:

\frac{1}{4}

= 8 \cdot \frac{1}{4}

Simplify

= 2

\int_{1}^{4} x^{- 2} d x

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What is the integral from 2 to 4 of 8/(x^2) ?
The integral from 2 to 4 of 8/(x^2) is 2