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f-x-27x-3-5x-2-2-lim-x-f-1-27x-f-1-x-x-1-3-




Question Number 160508 by qaz last updated on 30/Nov/21
f(x)=27x^3 +5x^2 −2  lim_(x→∞) ((f^(−1) (27x)−f^(−1) (x))/( (x)^(1/3) ))=?
$$\mathrm{f}\left(\mathrm{x}\right)=\mathrm{27x}^{\mathrm{3}} +\mathrm{5x}^{\mathrm{2}} −\mathrm{2} \\ $$$$\underset{\mathrm{x}\rightarrow\infty} {\mathrm{lim}}\frac{\mathrm{f}^{−\mathrm{1}} \left(\mathrm{27x}\right)−\mathrm{f}^{−\mathrm{1}} \left(\mathrm{x}\right)}{\:\sqrt[{\mathrm{3}}]{\mathrm{x}}}=? \\ $$

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