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OpenStudy (anonymous):
find the sum of the series
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OpenStudy (anonymous):
\[\sum_{3}^{8}3n-8\]
OpenStudy (anonymous):
3 below the sigma sign is where n starts, and the 8 above the sigma sign is where n ends, since this is a short finite sum you can do it by hand plug in 3 4 5 6 7 8 in to n and add them all up
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