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For positive real numbers a ,bc such th...

For positive real numbers `a ,bc` such that `a+b+c=p ,` which one holds? (a) `(p-a)(p-b)(p-c)lt=8/(27)p^3` (b)`(p-a)(p-b)(p-c)geq8a b c` (c)`(b c)/a+(c a)/b+(a b)/clt=p` (d) none of these

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