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OpenStudy (anonymous):
Find the sum of the first 8 terms of the sequence. Show work 1, -3, -7, -11, ...
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Directrix (directrix):
1, -3, -7, -11, ... It looks as if we are adding (-4) to the preceding term. 1 + (-3) + (-7) + (-11) + (-15) + (-19) + (-23) + (-27) = ? @tholn
OpenStudy (agent0smith):
You can also use the sum formula
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