Number and Operations Flashcards by Sahil Reddy | Brainscape

Q

Nth term of Arithmetic Sequence

A

tn = t1 + (n+1)d

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Q

Sum of First N Terms of Arithmetic Sequence

A

(n/2)(t1 + tn)

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Q

Nth term of Geometric Sequence

A

a1(r^(n-1))

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Q

Finite Geometric Sum

A

Sn=a1(1−rn)/(1−r)

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Q

Infinite Geometric Sum

A

S = (a1/1-r)

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