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arithmetical mean and geometrical mean - Optimization proble

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claudiocamera

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Hi there,

Here comes another one that is making my mind colapse.

Show that , if Xi≥0, i = 1,2...n , then:

1/nΣXi ≥ (ΠXi)^1/n), Π represents the product of Xi's.

In other words , show that the arithmetical mean for a set of nonnegative numbers is always greater than their geometrical mean.

Clue: Consider the problem:

Minimize ΣXi subject to ΠXi =c where c is a constant and Xi ≥0 with i = 1,2...n
 

Re: arithmetical mean and geometrical mean - Optimization pr

It is already satisfied by try-n-error. :D
 

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