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7 Cards in this Set
- Front
- Back
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In an arithmetic sequence,
a sub n = |
dn + c
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Where c =
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a sub1 - d
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The Sum of a Finite Arithmetic Sequence is
S sub n = |
n/2 (a1 + an)
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A sequence is geometric if...
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the ratios of consecutive terms are the same
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The nth term of a geometric sequence has the form:
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an = a1*r^(n-1)
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The Sum of a finite geometric sequence is
Sn = |
a1((1-r^n)/(1-r))
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The sum of an infinite geometric sequence is
S = |
a1 / 1-r
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