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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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 but I don't know how to get the critical points

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Another question on Mathematics

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