PROBLEMS.
| Autor: | Ábrego, Bernardo M. |
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| Předmět: | |
| Zdroj: | Mathematics Magazine; Dec2011, Vol. 84 Issue 5, p386-393, 8p |
| Abstrakt: | The article presents mathematical problems and solutions. It notes a proposal which requires to prove the mathematical equation AF/CF + CB/EB + ED/AD is greater than or equal to 2, where 2AB = BC, 2CD = DE, and 2EF = FA. It cites an inquiry whether the integer powers of 2 which can be written in the form ab + (a+1)(b+1), where a and b are positive integers. |
| Databáze: | Complementary Index |
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