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Mathematics, 29.12.2020 05:40 codyfore141

3 + 7+ 13 + 21 + 31 + 2. Find the general term and then the sum of first n terms
1.n +2:(n-1) + 3 (n - 2) +

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3 + 7+ 13 + 21 + 31 + 2. Find the general term and then the sum of first n terms
1.n +2:(n-1)...
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