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(Solved): Match the sum formulas Sn with the indicated sequences an. They are to hold true for all posi ...


Match the sum formulas \( S_{n} \) with the indicated sequences \( a_{n} \). They are to hold true for all positive integers
Match the sum formulas with the indicated sequences . They are to hold true for all positive integers . 1. A. 2. B. 3. C. 4. D.


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(1) an = n : sum of n terms = n(n+1)2Explanation:Let:S=1+2+…+(n?1)+n.Write it backwards:S=n+(n?1)+…+2+1.Add the two equations term by term; each addit
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