Monday 17 October 2016

calculus - Explanation for the convergence of the limits

I have the limits and I am wondering why it convergs?



$$\lim_{x \rightarrow \infty} e^{-x} \Big(x^3 -3x \Big)$$
also it converges to $0$ although it equals $(0 \times \infty) \neq 0$

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