What is the integral from 1/2 to 1 of (x^{-3}-18) ?

The integral from 1/2 to 1 of (x^{-3}-18) is -15/2

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integral from 1/2 to 1 of (x^{-3}-18)

\int_{\frac{1}{2}}^{1} (x^{- 3} - 18) d x

- \frac{15}{2}

Decimal

- 7.5

Solution steps

\int_{\frac{1}{2}}^{1} x^{- 3} - 18 d x

Apply the Sum Rule:

\int f (x) \pm g (x) d x = \int f (x) d x \pm \int g (x) d x

= \int_{\frac{1}{2}}^{1} x^{- 3} d x - \int_{\frac{1}{2}}^{1} 18 d x

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

\int_{\frac{1}{2}}^{1} 18 d x = 9

= \frac{3}{2} - 9

Simplify

\frac{3}{2} - 9 : - \frac{15}{2}

= - \frac{15}{2}

What is the integral from 1/2 to 1 of (x^{-3}-18) ?
The integral from 1/2 to 1 of (x^{-3}-18) is -15/2