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Mathematics, 03.12.2021 05:20 amastriano6192

Find the intervals on which f is increasing or decreasing, and find the local maximum and minimum values of f.


Now I know the first derivative is f'(x) = 1 - \frac{8}{x^3} but I don't know how to get the critical points


f(x) = x + \frac{4}{x^2}

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