Progressão aritmética Flashcards by Gabriel Pinheiro | Brainscape

Q

Qual a fórmula do termo geral na PA?

A

a(n) = a1 + (n – 1)r

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Q

Qual a fórmula da Soma dos N índices da PA?

A

S(n) = ( a1 + an ) . n
2

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Q

Qual a fórmula do termo geral na PG?

A

an = a1 . q ⁿ⁻¹

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Q

Qual a fórmula da Soma dos N índices da PG?

A

S(n) = a1 . (q ⁿ - 1)
q - 1

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Q

Qual a fórmula da Soma de uma PG Infinita?

A

S∞ = a1
1 - q

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