PA e PG Flashcards by Carolina Mendes | Brainscape

Q

Fórmula PA

A

an = a1 + (n-1) . r

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Q

soma dos termos em uma PA

A

Sn = (a1 + an ) . n/2

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Q

Fórmula PG

A

an = a1 . q ^n-1

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Q

Soma dos termos em uma PG

A

Sn = a1 . (q^n - 1)/q-1

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Q

Soma dos termos infinitos em uma PG

A

S ∞ = a1/1-q

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