Arithmetic/Geometric Sequences
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Last updated 10:34 PM on 10/4/25
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7 Terms
1
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Arithmetic Explicit Formula
an=a1+d(n-1)
2
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Arithmetic Partial Sum Formula
Sn=n/2(a1+an)
3
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Arithmetic Recursive Formula
A1 ; An = An-1 + d
4
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Geometric Explicit Formula
an=a1(r)^n-1
5
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Geometric Partial Sum Formula
Sn = a1 (1-r^n) / (1-r) OR Sn = (a1-a1(r)^n) / (1-r)
6
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Geometric Recursive Formula
A1 ; An=An-1(r)
7
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Geometric Infinite Sum
a1/1-r
