Difference between revisions of "1+x greater than exp(x/(1+x)) for nonzero real x greater than -1"
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Revision as of 20:07, 7 June 2016
Theorem
The following formula holds for nonzero $x \in \mathbb{R}$ with $x>-1$: $$1+x > \exp \left( \dfrac{x}{1+x} \right),$$ where $\exp$ denotes the exponential.
Proof
References
- 1964: Milton Abramowitz and Irene A. Stegun: Handbook of mathematical functions ... (previous): 4.2.34