Progressões Flashcards

1
Q

Fórmula da razão? (PA)

A

An-An-1

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2
Q

Termo Geral (PA)

A

An= A1+(n-1)r

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3
Q

Somo dos termos (PA)

A

Sn= (A1+An).n/2

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4
Q

Termo do meio? (PA)

A

A1+A3/2 = A2

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5
Q

Qual é a sequência de Fibonacci

A
A3= A1 + A2
A4= A2 + A3
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6
Q

Formula da razão? (PG)

A

q= a2/a1=a3/a2=an+1/an

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7
Q

Somo da PG Finita? (PG)

A

Sn= a1 (qn-1)/q-1

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8
Q

Soma da PG infinita? (PG)

A
b= raiz c.a 
(a,b,c)
a= x/q
b=x
c= x.q
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9
Q

Termo geral (PG)

A

an= a1.q n-1

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