SOLUTION: the sum of the first n terms of two A.Ps are as 13-7n:3n+1.find the ratio of their first terms and also of their second terms.

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Question 913253: the sum of the first n terms of two A.Ps are as 13-7n:3n+1.find the ratio of their first terms and also of their second terms.
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!




n = 1
,
n = 2


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