math review arithmetic

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Last updated 11:58 PM on 9/14/26
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8 Terms

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Arithmetic series formula

Sn=n(a1+an)/2

2
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Explicit formula

an=a1+d(n-1)

3
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Recursive definition

an={a1,n=1

an-1+d, n>1

4
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Nine

None

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8
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