Series in summation notation

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Rewrite the following series in summation notation in #s 11 & 12.
11. 3 + 12 + 48 + 192 + 768
12. 7 + 12 + 17 + 22 + 27 + 32

Evaluate each series using sum formulas.
13. 4 + 12 + 20 + 28 + ...; n = 9 ie the sum of the 1st nine terms
14. 3 + 6 + 12 + 24 + ...; n = 8 ie the sum of the 1st eight terms

19. A partial sum of the arithmetic series is given. Find the sum: 3 + 5 + 7 + . . . + 101.
20. Determine whether the series 3 - 1 + 1⁄3 - 1⁄9 + ... is convergent or divergent. If convergent, find its sum.

Reference no: EM13298048

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