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OpenStudy (anonymous):
If the nth partial sum of a sequence an is given by n Σ 2k+4 k=1 then what is the 4th term of the sequence?
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OpenStudy (anonymous):
4th term is 12. 4th partial sum is 36.
OpenStudy (anonymous):
\[\sum_{k = 1}^{4} 2k+4 =(2(1)+4)+(2(2)+4)+(2(3)+4)+(2(4)+4) = 36 \]
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