Arithmetic-geometric mean inequality
= Arithmetic-geometric mean inequality
{wiki}
For nonnegative $a_1,\ldots,a_n$,
$$
\frac{a_1+\cdots+a_n}{n}\geq(a_1\cdots a_n)^{1/n},
$$
with equality exactly when all the $a_i$ are equal.
= Arithmetic-geometric mean inequality
{wiki}
For nonnegative $a_1,\ldots,a_n$,
$$
\frac{a_1+\cdots+a_n}{n}\geq(a_1\cdots a_n)^{1/n},
$$
with equality exactly when all the $a_i$ are equal.