AM GM inequality

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  • #75506
    Paritosh Verma
    Participant

    Is it possible to solve this problem with the help of AM GM inequality?

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    #75528
    dev2002
    Participant

    If we use AM-GM inequality x>=2 y>=2 z>=2

    so x^2+y^2+z^2>=4+4+4=12 and xyz>=222=8

    So x^2+y^2+z^2-xyz>=4. That’s what I’m getting , it will be helpful if you could mention if the answer is correct or not.

    #75705
    Paritosh Verma
    Participant

    yes, the final answer is 4. Thanks.

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