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math equations

math

TermDefinition
recursive formula for an arithmetic sequence an = an-1 + d
explicit formula for an arithmetic sequence an = a1 + d(n - 1)
sum of first n terms arithmetic sequence sn = n/2 ( a1 + an)
recursive formula for a geometric sequence an = an-1 x r
explicit formula for a geometric sequence an = a1 x r^n-1
sum of first n terms geometric sequence sn = a1 ( 1 - r^n) / 1 - r
Created by: quinnj44
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