Question: An exponential sequence (G.P.) has a positive common ratio. If the sum to infinity of the sequence is 25 and the sum of the

An exponential sequence (G.P.) has a positive common ratio. If the sum

An exponential sequence (G.P.) has a positive common ratio. If the sum to infinity of the sequence is 25 and the sum of the first 2 terms is 16, find the (a) fifth term; (b) sum of the first 4 terms, of the sequence.

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