# Mathematical Induction

• April 29th 2009, 09:26 AM
Bernice
Mathematical Induction
I need to prove that:

$\frac{a_1 +a_2 + ... +a_n}{n}\ge \sqrt[n]{a_1 a_2...a_n}$ where $n$ is natural positive number and $a_1, a_2, .., a_n$ are non-negative real numbers.