M A TH AA H L - IB Documents
1.1.3 Sigma notation Sigma notation is a way to represent the summation of any sequence — this means that it can be used for both arithmetic or geometric series. The notation shows you the formula that generates terms of a sequence and the upper and lower limits of the terms that you want to add up in this sequence. X10 n=1 3n 1 Last value of ... ................
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