Arithmetic Series
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Definition of series, formula for arithmetic series
A series is the sum of a sequence
SL Core 1.2
The sum of terms in a sequence is called a series.
Calculating arithmetic series
SL Core 1.2
The sum of the first n terms in an arithmetic sequence is given by
Sn=2n(2u1+(n−1)d)📖
or equivalently
Sn=2n(u1+un)📖
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