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Um método de contagem na soma dos termos de uma progressão aritmética

2021; Sociedade Brasileira de Matemática; Volume: 9; Issue: 38 Linguagem: Inglês

10.21711/2319023x2021/pmo938

2319-023X

Ana Gabriela Antunes Cardoso, Josenildo Chaves,

Business and Management Studies

In this work, we present a counting technique to solve three problems frequently discussed in mathematics classes.We explored the relationship between the problems of determining the sum of the first n terms of an arithmetic progression, how to determine the number of diagonals in a convex polygon with n sides and that of calculating a probability in a finite sample space.They are relevant applications to motivate counting methods in high school.