What is the integral from-infinity to-1 of 3/(x^2) ?

The integral from-infinity to-1 of 3/(x^2) is 3

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integral from-infinity to-1 of 3/(x^2)

\int_{- \infty}^{- 1} \frac{3}{x ^{2}} d x

3

Solution steps

\int_{- \infty}^{- 1} \frac{3}{x ^{2}} d x

Compute the indefinite integral:

\int \frac{3}{x ^{2}} d x = - \frac{3}{x} + C

Compute the boundaries:

\int_{- \infty}^{- 1} \frac{3}{x ^{2}} d x = 3 - 0

= 3 - 0

Simplify

= 3

What is the integral from-infinity to-1 of 3/(x^2) ?
The integral from-infinity to-1 of 3/(x^2) is 3