L 3 the expression to expand Series 1
Added by William D.
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.. + n To expand this series, we need to find the sum of the terms in the series. One way to do this is to use the formula for the sum of an arithmetic series: Sn = n/2 (a1 + an) where Sn is the sum of the first n terms, a1 is the first term, and an is the nth Show more…
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