SOLUTION: find sum of series a - (a d) (a 2d) - (a 3d) ----- (2n 1) terms
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Algebra: Sequences of numbers, series and how to sum them
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Question 621647
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find sum of series a - (a d) (a 2d) - (a 3d) ----- (2n 1) terms
Answer by
lynnlo(4155)
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a-a^3d^2-2a^3dn
(