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Find the sum of the first n terms of the sum that corresponds to the succession

Find the sum of the first n terms of the sum that corresponds to the succession-example-1
User FoJjen
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1 Answer

17 votes
17 votes

Answer:

a

Explanation:

This is a geometric series with first term 7 and common ratio -2/5.

Find the sum of the first n terms of the sum that corresponds to the succession-example-1
User Swapnil Soni
by
2.7k points