11-00-GeometricMean.tex

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\begin{document}
\textbf{Geometric Mean.}\\
If  $a_1,a_2,\ldots,a_n$ are real numbers, we define their \emph{geometric mean} as
$$G.M. =\sqrt[n]{a_1a_2\cdots a_n}$$
\bigskip

{\footnotesize
(We usually require the numbers to be non negative so the mean always exists.)
}
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