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Math Help - Help : Inequality !!

  1. #1
    Junior Member
    Joined
    Dec 2009
    Posts
    46

    Help : Inequality !!

    Hii !

    Can You Help Me in This Inequality :

    a,b and c the reals such as :

    a ,b , c > 0 and \frac{1}{a+b+1} + \frac{1}{a+c+1} + \frac{1}{b+c+1} \geq 1

    prove That :

    a+b+c \geq ab+ac+bc
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  2. #2
    Junior Member
    Joined
    Dec 2009
    Posts
    46
    Nobody ??

    My Solution :

    By cauchy schwartz wa have :

    And We Have :


    Then :
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