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Excel - Arithmetic Progression
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日期:2025-09-27
25, sn, Sum of the first n terms. 26. 27, Formula, For the n-th term. 28, an = a+(n-1 )*d. 29. 30, Formula, For the sum of the first n terms. 31, sn = n*(2*a+(n-1)*d)/2....看更多