Saturday, 11 November 2017

calculus - How to find $limlimits_{xto0}frac{e^x-1-x}{x^2}$ without using l'Hopital's rule nor any series expansion?

Is it possible to determine the limit



$$\lim_{x\to0}\frac{e^x-1-x}{x^2}$$



without using l'Hopital's rule nor any series expansion?




For example, suppose you are a student that has not studied derivative yet (and so not even Taylor formula and Taylor series).

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