67 research outputs found

    A simple proof of the Chuang's inequality

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    The purpose of the paper is to present an short proof of the Chuang's inequality.Comment: 3 page

    Some uniqueness results related to the Br\"{u}ck Conjecture

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    Let f be a non-constant meromorphic function and a = a(z) be a small function of f. Under certain essential conditions, we obtained similar type conclusion of Bruck Conjecture, when f and its differential polynomial P[f] shares a with weight l. Our result improves and generalizes a recent result of Li, Yang, and Liu.Comment: 11 page

    Proof Without Words: Sums of Powers of Natural numbers

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    The aim of this paper is to prove wordlessly the sum formula of 1k+2k+…+nk1^{k}+2^{k}+\ldots +n^{k}, k∈{1,2,3}k\in\{1,2,3\}.Comment: 3 pages, 3 figure

    A visual tour via the Definite Integration ∫ab1xdx\int_{a}^{b}\frac{1}{x}dx

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    Geometrically, ∫ab1xdx\int_{a}^{b}\frac{1}{x}dx means the area under the curve 1x\frac{1}{x} from aa to bb, where 0<a<b0<a<b, and this area gives a positive number. Using this area argument, in this expository note, we present some visual representations of some classical results. For examples, we demonstrate an area argument on a generalization of Euler's limit (lim⁑nβ†’βˆž((n+1)n)n=e)\left(\lim\limits_{n\to\infty}\left(\frac{(n+1)}{n}\right)^{n}=e\right). Also, in this note, we provide an area argument of the inequality ba<abb^a < a^b, where e≀a<be \leq a< b, as well as we provide a visual representation of an infinite geometric progression. Moreover, we prove that the Euler's constant γ∈[12,1)\gamma\in [\frac{1}{2}, 1) and the value of ee is near to 2.72.7. Some parts of this expository article has been accepted for publication in Resonance - Journal of Science Education, The Mathematical Gazette, and International Journal of Mathematical Education in Science and Technology.Comment: 10 pages, 15 figure
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