What is the integral from-8 to 64 of 1/(x^{1/3)} ?

The integral from-8 to 64 of 1/(x^{1/3)} is 18

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integral from-8 to 64 of 1/(x^{1/3)}

\int_{- 8}^{64} \frac{1}{x ^{\frac{1}{3}}} d x

18

Solution steps

\int_{- 8}^{64} \frac{1}{x ^{\frac{1}{3}}} d x

Find undefined (singularity) points:

x = 0

If exist

b, a < b < c, f (b) =

undefined

, \int_{a}^{c} f (x) d x = \int_{a}^{b} f (x) d x + \int_{b}^{c} f (x) d x

= \int_{- 8}^{0} \frac{1}{x ^{\frac{1}{3}}} d x + \int_{0}^{64} \frac{1}{x ^{\frac{1}{3}}} d x

\int_{- 8}^{0} \frac{1}{x ^{\frac{1}{3}}} d x = - 6 (- 1)^{\frac{2}{3}}

\int_{0}^{64} \frac{1}{x ^{\frac{1}{3}}} d x = 24

= - 6 (- 1)^{\frac{2}{3}} + 24

Simplify

- 6 (- 1)^{\frac{2}{3}} + 24 : 18

= 18

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What is the integral from-8 to 64 of 1/(x^{1/3)} ?
The integral from-8 to 64 of 1/(x^{1/3)} is 18