Progressões: Aritmética e Geométrica Flashcards

1
Q

Progressão Aritmética

A

Fórmulas: an= a1 + (n-1).r

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2
Q

PA: Sn

A

Sn = (a1+an).n / 2

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3
Q

PG: an

A

an = a1 . q ^n-1

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4
Q

PG: 3 termos

A

X/q ; x ; x.q

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5
Q

PG: soma dos temos Sn

A

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

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6
Q

PG: soma infinito

A

S (infinito): a1 / 1-q

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