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Sequences: sum of 1st 2 terms is 18, sum of 1st 4 is 52  TOPIC_SOLVED

Well i am now totally lost... I want so to solve this maths problem on my own but i have no idea how to solve it... I can solve it the long way but how can i do it quicker? The sum of the first two terms of an arithmetic progression is 18 and the sum of the first four terms is 52. find the sum of th...
by pederjohn
on Thu Jun 18, 2009 8:22 pm
 
Forum: Discrete Math
Topic: Sequences: sum of 1st 2 terms is 18, sum of 1st 4 is 52
Replies: 2
Views: 2221

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