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OpenStudy (anonymous):
Find the sum of the arithmetic sequence. -1, 2, 5, 8, 11, 14, 17
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geerky42 (geerky42):
Just add all these together, there is not so many of them, lol.
OpenStudy (solomonzelman):
(last term + 1st term) times number of term ------------------------------------- 2
OpenStudy (anonymous):
56
OpenStudy (solomonzelman):
yes :) idk, how have you done it, but... correct.
OpenStudy (solomonzelman):
@lornbeach can I test you with 1 question ?
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