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Soma telescópica. A Mathematical Reflections Undergraduate Problem. A Telescoping Sum
Here is the solution to the U115 Mathematical Reflections Problem I submitted a few months ago. MR_U115… mais →
problemas | teoremas
Sua vida está calma? Compre problemas!
Marketing, comunicação e diversão! wrote 2 weeks ago: A internet é realmente um mundo… às vezes louco, devemos concordar… Enquanto todo mundo … more →
Soma telescópica. A Mathematical Reflections Undergraduate Problem. A Telescoping Sum
Américo Tavares wrote 3 weeks ago: Here is the solution to the U115 Mathematical Reflections Problem I submitted a few months ago. MR_U … more →
Problema do mês :: Problem of the month #2. (Coeficientes da série binomial :: Binomial series coefficients). Resolução :: Solution
Américo Tavares wrote 2 months ago: ver/see Problema do mês Problem of the month Problema: Admita que . Seja um número real, e Deduza a … more →
Three gamma function identities
— 2 comments
Américo Tavares wrote 3 months ago: Let . Show that and . Let . If , show that . Hints: for the first two identities use the formula pr … more →
O cachecol
verniz wrote 3 months ago: é possível que o colete passe desprecebido? SIM a minha roupa pode não ser a mais gira mas nem um or … more →
Problema do mês :: Problem of the month #1. (Valoração p-ádica :: p-adic valuation). Resolução :: Solution
Américo Tavares wrote 4 months ago: ver/see Problema do mês Problem of the month Problem: Let be the greatest positive integer such that … more →
A mortgage problem (Problema sobre o prazo de amortização de uma hipoteca)
Américo Tavares wrote 4 months ago: In a recent post Professor Gowers writes on the new proposal for the A-level exam on the “ … more →
Problema do mês :: Problem of the month #2
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Américo Tavares wrote 5 months ago: ver/see Problema do mês Problem of the month Resolução :: Solution Enunciado do Problema Admita que … more →
Problema do mês :: Problem of the month #1
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Américo Tavares wrote 5 months ago: ver/see Problema do mês Problem of the month Resolução :: Solution Enunciado do Problema Seja o ma … more →
Congruences and Divisibility -- A Purdue University Problem
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Américo Tavares wrote 7 months ago: pdf: ver caderno Versão portuguesa aqui PROBLEM OF THE WEEK, Problem No. 12 (Spring 2009 Series): … more →
My solution to the Problem Of the Week-9 [Todd and Vishal's blog]: Period of a decimal expansion
Américo Tavares wrote 1 year ago: pdf: included in Caderno (see “caderno” page) I submitted a solution to the following Pr … more →
Problem of the Week #2 [from Walking Randomly blog] - Submission
Américo Tavares wrote 1 year ago: I’ve just submitted the following solution for the « Integral of the Week #2 The second Integr … more →
Apéry Numbers
Américo Tavares wrote 1 year ago: This is a translation of a previous Portuguese post of mine. Show that for all integers the follo … more →
Putnam problem of the day (by the HMD dated March 1, 2008)
Américo Tavares wrote 1 year ago: pdf: included in Caderno (see “caderno” page) On March 1st, 2008, the Putnam problem of … more →
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