What is the integral from 1 to 2 of-4/(x^2) ?

The integral from 1 to 2 of-4/(x^2) is -2

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integral from 1 to 2 of-4/(x^2)

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

- 2

Solution steps

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

Take the constant out:

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

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

Apply the Power Rule

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

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

Compute the boundaries:

\frac{1}{2}

= - 4 \cdot \frac{1}{2}

Simplify

= - 2

\int_{0}^{4} (4 - 2 x) d x

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What is the integral from 1 to 2 of-4/(x^2) ?
The integral from 1 to 2 of-4/(x^2) is -2