Re: Problem
- From: "David Moran" <dmoran21@xxxxxxx>
- Date: Thu, 1 Dec 2005 18:38:07 -0600
"Peper" <peper@xxxxxxxx> wrote in message
news:438f906e$0$1507$f69f905@xxxxxxxxxxxxxxxxxx
> three _positive_ real numbers a,b,c with
> ab + bc + ca = 3
>
> prove that:
> a^3 + b^3 + c^3 + 6abc >= 9
>
> Any hints how to do that?
>
> --
> Best Regards,
> Peper
>
You've already gotten replies on this problem. Why post again?
Dave
.
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