Use sigma notation to represent the following series for the first 12 terms. 2 +(-8) +32 + (-128) + .

asked Nov 11, 2019 815 views

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4 votes

This is simply Order of Operations. The answer should be 104.

RamKr answered Nov 13, 2019

by RamKr

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2 votes

$\displaystyle\sum_(i = 1)^(12) 2(-4)^(i-1)$

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