What is the integral from 1 to infinity of 8/(x^3) ?

The integral from 1 to infinity of 8/(x^3) is 4

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integral from 1 to infinity of 8/(x^3)

\int_{1}^{\infty} \frac{8}{x ^{3}} d x

4

Solution steps

\int_{1}^{\infty} \frac{8}{x ^{3}} d x

Compute the indefinite integral:

\int \frac{8}{x ^{3}} d x = - \frac{4}{x ^{2}} + C

Compute the boundaries:

\int_{1}^{\infty} \frac{8}{x ^{3}} d x = 0 - (- 4)

= 0 - (- 4)

Simplify

= 4

What is the integral from 1 to infinity of 8/(x^3) ?
The integral from 1 to infinity of 8/(x^3) is 4