sequences & series Flashcards by Ben Passberger | Brainscape

Q

Arithmetic sequence

A

Un = a+(n-1)d

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Q

Arithmetic series

A

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

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Q

Geometric sequence

A

Un = ar^n-1

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Q

Geometric series

A

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

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Q

Sum to infinity

A

a/1-r

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