Sequences And Series Flashcards by Ai DontKnow | Brainscape

Q

Arithmetic sequence

A

tn = a + (n-1)d

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Q

Arithmetic series

A

Sn = n/2[2a+(n-1)d]

Sn = n/2(a+tn)

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Q

Geometric sequence

A

tn = ar^n-1

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Q

Geometric series

A

It’s a sin to run from arni

Sn = a(r^n -1)/r-1

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