Mathematics Asked by Andrew Lewis on November 27, 2020
${4, -2, 4, -2, dots}$
$a_n = ?$
What is the formula for the general term $a_n$ of the sequence?
I know that it starts in the numerator with $(-1)^{n-1}$ in order to alternate between positive and negative, but I can’t seem to figure out the rest.
The homework problem I am working on requires it to be a non-piecewise function.
$a_n=1-3cdot(-1)^n$ works if you don't want a piecewise definition
Answered by OnlyDay on November 27, 2020
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