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OpenStudy (anonymous):
Find the 8th term of the geometric sequence: 1, -2, 4, -8, ...
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OpenStudy (experimentx):
t8 = 1*(-2)^7 =
OpenStudy (experimentx):
-128 ... use formula t(n) = first term x (common ratio)^(n-1)
OpenStudy (anonymous):
awesome thank you
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