Trinomial inequality a + B + C ≥ how many a & # 178; + B & # 178; + C & # 178; greater than or equal to how many a ^ 3 + B ^ 3 + C ^ 3 ≥ how many

According to the three variable mean inequality,
ABC under a + B + C ≥ 3 * triple root
A & # 178; + B & # 178; + C & # 178; ≥ 3 * triple root sign a & # 178; B & # 178; C & # 178;
a^3+b^3+c^3≥3abc

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